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[ARCHIVED THREAD] - 6.5MPC Range Report (Page 1 of 2)
Posted: 11/29/2009 11:30:19 AM EDT
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I finally got to take the MPC out again using a chrono. I am shooting different loads using 95grain Vmax bullets and 16" barrel.
22 grains Benchmark ranges from 2171 to 2238fps. 23 grains BLC-2 ranges from 1995 to 2065fps AS a comparison my 6.5 Grendel varied from 2325 to 2380fps using 29.7 grains BLC-2 but using 120 gr Hot Cors 
This can is at 75 yds 
50yds 
50yd sight in with reddot |
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Hello Fellas, Yep 7.62x40 and Uptown1 are pretty much on point, seems that AA1680, AA2230 are top choices for cases with less than 35 grs. of powder capacity.The pressure curve seems stable up to about 24 grs. with .223 Rem. cased wildcats depending on bullet weight, diameter etc. If you look at my Included BURN RATE CHART below N200 powder is very close to AA1680 (as you were looking for data for that powder on your original post).However, It does not always correspond with pressure level.
My 20" bbl. 6mm-223 (6X45mm) AR maxes out @ 21.7 grs. of AA1680 w/ Hornandy 87gr. V-Maxs' @ AR Mag length before pressure signals appear. I started w/ 19.0grs and worked my way up. Your milage may very. Again, always start @ a safe level and work up with caution. You may want to start with 18.5 grs. of N200 and work your way up, just a suggestion. Well, good luck... 1) Norma R-1 2) Vihtavuori N-310 3) Hodgdon Titewad 4) ADI AS-30N 5) Accurate Nitro 100 6) Alliant Bullseye 7) Accurate Solo 1000 8) Scot Red Diamond 9) Vectan AS 10) Alliant Red Dot 11) Alliant Promo 12) Hodgdon Titegroup 13) Accurate No. 2 14) Alliant American Select 15) Winchester AA Plus 16) Hodgdon Clays 17) Vihtavuori N-320 18) Ramshot Competition 19) Scot Royal D 20) Winchester WST 21) ADI AP-50N 22) Hodgdon HP-38 23) Vectan AO 24) Winchester 452AA 25) Scot 453 26) Winchester 231 27) Ramshot Zip 28) IMR 700X 29) Alliant Green Dot 30) ADI AS-50N 31) Hodgdon International Clays 32) Winchester 473AA 33) Hodgdon HS-5 34) Winchester WSL 35) Alliant Unique 36) Hodgdon Universal Clays 37) Vihtavuori N330 38) ADI AP- 70N 39) Alliant Power Pistol 40) IMR SR-7625 41) Hodgdon HS-6 42) Ramshot Silhouette 43) Winchester WAP 44) Vihtavuori N340 45) Winchester 540 46) Alliant Herco 47) Winchester WSF 48) IMR SR-4756 49) ADI AP- 100 50) Accurate Solo 1250 51) Vihtavuori 3N37 52) IMR 800X 53) Accurate No. 7 54) Hodgdon Longshot 55) Scot Solo 1500 56) Ramshot True Blue 57) Vihtavuori N350 58) Vihtavuori 3N38 59) Hodgdon HS-7 60) Alliant Blue Dot 61) Winchester 571 62) Vihtavuori N105 63) Accurate No. 9 64) Ramshot Enforcer 65) Scot 4100 66) Alliant Steel 67) Alliant 2400 68) Vihtavuori N110 69) Hodgdon Lil Gun 70) Norma R123 71) Hodgdon H110 72) Winchester 296 73) ADI AR2205 74) IMR SR-4759 75) Vihtavuori N120 76) IMR 4227 77) Hodgdon H4227 78) Accurate 5744 XMR 79) Alliant 410 80) Vihtavuori N130 81) Vectan SP-3 82) Winchester 680 83) Norma N200 84) Accurate 1680 85) ADI AR2207 86) Hodgdon H4198 87) Vihtavuori N133 88) IMR 4198 89) ADI BM1 90) Scot Brig 4197 91) Accurate 2015 XMR 92) Scot Brig 3032 93) Alliant Reloder 7 94) IMR 3031 95) Hodgdon Benchmark 96) ADI BM2 97) Norma N201 98) Scot Brig 322 99) ADI AR2219 100) Hodgdon H322 101) Ramshot X-Terminator 102) Accurate 2230 103) Winchester 748 104) Alliant Reloder 10X 105) Hodgdon BLC-2 106) ADI AR2206 107) Accurate 2460 108) Hodgdon H335 109) Ramshot TAC 110) Hodgdon H4895 111) Accurate 2495 XMR 112) ADI AR2206H 113) Alliant Reloder 12 114) IMR 4895 115) Scot Brig 4065 116) Vihtavuori N135 117) Hodgdon Varget 118) Vectan 5000 119) ADI AR2208 120) IMR 4064 121) Accurate 4064 XMR 122) Accurate 2520 123) IMR 4320 124) Norma N203 125) Vihtavuori N140 126) Vihtavuori N540 127) Accurate 2700 128) Ramshot Big Game 129) Alliant Reloder 15 130) Hodgdon H380 131) Winchester 760 132) Scot Brig 4351 133) Hodgdon H414 134) Vihtavuori N150 135) Vihtavuori N550 136) Accurate 4350 XMR 137) IMR 4350 138) Vectan 7000 139) ADI AR2209 140) Hodgdon H4350 141) Norma N204 142) Ramshot Hunter 143) Alliant Reloder 19 144) Vihtavuori N160 145) Vihtavuori N560 146) IMR 4831 147) Scot Brig 4831 148) ADI AR2213SC 149) Norma N205 150) Accurate 3100 XMR 151) Winchester WMR 152) Hodgdon H4831 153) Norma MRP 154) Alliant Reloder 22 155) Winchester 785 156) Hodgdon H450 157) Accurate Mag Pro 158) Vihtavuori N165 159) Winchester WXR 160) IMR 7828 161) Accurate 8700 162) Hodgdon H1000 163) ADI AR2217 164) Ramshot Magnum 165) Alliant Reloder 25 166) ADI AR2225 167) Hodgdon Retumbo 168) Hodgdon H870 169) Vihtavuori N170 170) Vihtavuori 24N41 171) Hodgdon 50 BMG 172) Hodgdon US869 173) ADI AR2218 174) Vihtavuori 20N29 |
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Well here is some more 6.5mm TCU Load Data. (This is for a Thompson Center Contender Type Single Shot Pistol, thus in most cases the COL is longer than AR mag. length) Loads used in testing the BullBerry 6.5 TCU 15" 1:9.5" twist barrell with scope. All Groups Fired At 100 Yards scoped from bench POWDER BULLET PRIMER VELOCITY SD GROUP 27.0 W748 140 Speer Win 2210 10 .55 ! 26.0 R-15 140 Speer Rem BR 2103 6 1.1” 25.0 Varget 140 Speer Win 2098 6 .77 24.0 H4895 140 Speer Win 2126 16 1.17 24.8 A2460 140 Speer Win 2198 24 1.76 24.0 A2330 140 Speer Win 2083 16 1.88 24.0 A2330 139 Lapua Win 2130 15 .95 23.0 H322 120 Nosler CCI BR 2148 36 7.1 23.5 H322 120 Nosler CCI BR 2187 11 .96 24.0 H322 120 Nosler CCI BR 2225 20 .80 24.0 A2330 120 Speer Rem BR 2088 33 1.2 23.4 H322 120 Sierra Win 2156 16 .74 24 H322 120 Sierra Win 2204 14 .77 26.8 W748 120 Sierra Win 2252 53 1.5 24.8 A2460 120 Sierra Win 2194 19 .79 24.5 A2330 120 Speer Win 2144 19 .61 ! 25.8 H335 120 Sierra Rem BR 2258 18 1.17 27.0 W748 120 Speer Win 2236 11 .75 25.5 Varget 120 Speer Rem BR 2100 26 .98 24.4 V133 120 Sierra Rem BR 2309 7 1.0 26.0 R-15 120 Speer Rem BR 2147 38 .71 25.0 R-15 123 Lapua Rem BR 2103 23 .52 ! 27.0 W748 123 Lapua Win 2293 19 .71 25.1 A2330 123 Lapua Rem BR 2243 25 .55 ! 26.4 Varget 100 Sierra Rem BR 2261 16 .255 !!!!! 23.4 H322 100 Sierra Rem BR 2170 19 .78 22.5 H4198 100 Sierra Win 2467 22 1.0 24.0 H322 100 Sierra Win 2268 28 1.25 26.5 H322 100 Sierra Rem BR 2342 23 1.1 27.0 A2460 100 Sierra Rem BR 2451 17 .51 ! 25.8 R-15 100 Sierra Rem BR 2177 34 .58 ! 25.1 R-15 100 Sierra Rem BR 2135 20 .80 25.8 Varget 100 Nosler CCI BR 2239 31 1.1 26.2 Varget 100 Nosler CCI BR 2304 24 .73 23.5 H4198 85 Sierra Win 2521 5 .57 ! 26.0 H322 85 Sierra Win 2411 6 .59 ! 27.0 H322 85 Sierra Win 2513 10 .53 ! 25.0 N133 85 Sierra Rem BR 2424 10 .79 24.3 R-15 85 Sierra Rem BR 2030 17 .52! |
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wow, chili and beer.....I need to go to your range......we get questioned over styrofoam cups.. 
if you can find some 1680 it works pretty good...... looks like it is coming along pretty well..... Thanks. Your welcome to come over if your in the area. I love this range! |
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BLC-2 usually works well and has a good velocity to pressure ratio for 223 Rem. class cases. You may be able to squeeze a grain or two more from BLC-2 for your MPC case...
Here are some examples with 90 gr. & 100 gr. bullet weights in 6x45mm (6mm-223): 6x45mm (6mm-223) (Hodgdon Data) Warning! Notes: case: Remington (REF); barrel length: 24"; twist: 1:9"; trim length: 1.750"; primer: Federal 250M; bullet diam.: .243"; never exceed maximum loads Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS) 100 Hornady SP Hodgdon H-414 26.0 2,310 Remarks: starting load; 39,300 cup 100 Hornady SP Hodgdon H-414 28.0 2,484 Remarks: maximum load; 43,500 cup 100 Hornady SP Hodgdon H-380 26.0 2,397 Remarks: starting load; 41,000 cup 100 Hornady SP Hodgdon H-380 28.0 2,506 Remarks: maximum load; 47,000 cup 100 Hornady SP Hodgdon BL-C(2) 24.5 2,404 Remarks: starting load; 43,000 cup 100 Hornady SP Hodgdon BL-C(2) 26.5 2,619 Remarks: maximum load; 50,000 cup 100 Hornady SP Hodgdon H-335 21.5 2,305 Remarks: starting load; 44,000 cup 100 Hornady SP Hodgdon H-335 23.0 2,443 Remarks: maximum load; 50,000 cup 100 Hornady SP Hodgdon H-4895 22.0 2,414 Remarks: starting load; 42,000 cup 100 Hornady SP Hodgdon H-4895 24.0 2,616 Remarks: maximum load; 50,000 cup 6x45 Custom Sako L461 Load Data Warning! Notes: A custom Sako L461 6x45 with a 20-inch Douglas barrel and a Leupold 2-7x Rifleman scope were used for testing. Case: Federal (except where otherwise specified in remarks). Accuracy is the average of (at least) three, five-shot groups at 100 yards from a benchrest. Velocities were measured with an Oehler M-35P chronograph with the front screen 12 feet from the rifle's muzzle. Range temperatures were from 68 to 79 degrees Fahrenheit. Average of all handloads tested: 1.60. (Handloader Issue #255 - October-November, 2008) Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS) 100 Hornady roundnose Hodgdon BL-C(2) 25.5 2452 Remarks: primer: R-P 7 1/2; group (inches): 1.72 100 Hornady roundnose Hodgdon H-4895 23.0 2319 Remarks: primer: R-P 7 1/2; group (inches): 1.34 6x45mm (6mm-223) (Hodgdon Data) Warning! Notes: case: Remington (REF); barrel length: 24"; twist: 1:9"; trim length: 1.750"; primer: Federal 250M; bullet diam.: .243"; never exceed maximum loads Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS) 90 Speer SP Hodgdon BL-C(2) 25.0 2,523 Remarks: starting load; 41,000 cup 90 Speer SP Hodgdon BL-C(2) 27.0 2,744 Remarks: maximum load; 50,000 cup 90 Speer SP Hodgdon H-335 22.5 2,442 Remarks: starting load; 40,900 cup 90 Speer SP Hodgdon H-335 25.0 2,731 Remarks: maximum load; 49,500 cup 90 Speer SP Hodgdon H-4895 23.5 2,509 Remarks: starting load; 41,500 cup 90 Speer SP Hodgdon H-4895 25.5 2,721 Remarks: maximum load; 50,000 cup 90 Speer SP Hodgdon H-322 20.5 2,391 Remarks: starting load; 41,000 cup 90 Speer SP Hodgdon H-322 22.5 2,531 Remarks: maximum load; 49,500 cup 90 Speer SP Hodgdon H-4198 17.5 2,189 Remarks: starting load; 41,500 cup 90 Speer SP Hodgdon H-4198 19.0 2,350 Remarks: maximum load; 49,000 cup 6x45 Custom AR-15 Load Data Warning! Notes: A custom Colt AR-15 in 6x45 with a 24-inch match stainless barrel and a Leupold 12x scope were used for testing. Primer: WSR; case: Federal (except where otherwise specified in remarks). Accuracy is the average of (at least) three, five-shot groups at 100 yards from a benchrest. Velocities were measured with an Oehler M-35P chronograph with the front screen 12 feet from the rifle's muzzle. Range temperatures were from 57 to 67 degrees Fahrenheit. Average of all handloads tested: 1.24. (Handloader Issue #255 - October-November, 2008) Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS) 90 Nosler Ballistic Tip Hodgdon BL-C(2) 26.5 2625 Remarks: group (inches): 1.59 90 Nosler Ballistic Tip Hodgdon H-4895 25.0 2627 Remarks: group (inches): 1.77 Enjoy |
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I finally got to take the MPC out again using a chrono. I am shooting different loads using 95grain Vmax bullets and 16" barrel. 22 grains Benchmark ranges from 2171 to 2238fps. 23 grains BLC-2 ranges from 1995 to 2065fps AS a comparison my 6.5 Grendel varied from 2325 to 2380fps using 29.7 grains BLC-2 but using 120 gr Hot Cors I like the 95gr Vmax. Out of my 18" 6.5 CSS, using the 95gr Vmax with 30.8grs X-terminator pushes it to 2874 FPS and .416" at 100yds. Brass is fire formed 7.62x39 IMI and Win large primers. Barnes is putting out 2 new 6.5 bullets by the first of the year, both 100gr. A TTSX and a non-tipped version in their mil/tac line. |
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The 6.5 CSS cartridge case has different Internal ballistic dynamics, alltough X-Terminator powder might work fairly well in the 6.5 MPC.
The 6.5 MPC may work with a start load of say 18.5 grs. and may max-out @ say 22-24 grs. w/ a 95 gr. V-Max bullet with Ramshot X-Terminator. Generally the faster powders work better w/ shorter bbls. and CAR length AR platforms. Well just a thought... |
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The 6.5 CSS cartridge case has different Internal ballistic dynamics, alltough X-Terminator powder might work fairly well in the 6.5 MPC. The 6.5 MPC may work with a start load of say 18.5 grs. and may max-out @ say 22-24 grs. w/ a 95 gr. V-Max bullet with Ramshot X-Terminator. Generally the faster powders work better w/ shorter bbls. and CAR length AR platforms. Well just a thought... Yeah, know it's different. Was just supplementing the OP's data with the 6.5 G/CSS since he only had data there for heavier bullets. I use X-terminator in my 5.56 with really good results. I'd bet it would work very well in the 6.5MPC also. I like TAC in my 120gr up loads for my 6.5G/CSS 18" bbl. I'm really wanting to build a 6x45 now also. Greg |
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Thanks Dr. I don't have any signs of pressure using Benchmark or BLC-2. I'll try and get my hands on the faster buring powder you recommended. The reloading sheet SSK gave me lists 21.9 grains of N200 to get almost 2500fps out of a 20" barrel. N200's burn rate is near AA-1680, though with the 95gr bullet you might try 4227 (IMR or Hodgdon) or AA-5744. Still AA-1680 is a great place to start. |
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The faster powders are definately the way to go with the 6.5mm MPC's powder capacity and 16" bbl length. You will need somthing slower for this length. It will spike way too fast. Try RL#7 Hes running a program for me to try out different loads. I have to have several loads made before my buddy will lend me a chrono. The program is supposed to be very accurate. |
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6.5mm MPC Load Data: 16" AR-15 BBL. 2.260 COAL
OK, lets do the following order: 95 gr. V-Max (.365 BC) 120 gr. Speer HC (.392 BC) 120 gr. V-Max (.465 BC) 50,000 C.U.P. is listed as a safe MAP (Max. Average Pressure) Although, many strong modern AR-15s can easily function properly up to 52k-54k CUP (+P) As always use caution and work you way up. Bullet length (BL) is a big factor in velocity, energy, and chamber pressure especially in smaller capacity cases. Hence, the longer very high BC(Ballistic Coefficient) bullets take-up a lot of Internal case capacity...when using such bullets you need to use very fast powders etc. I only listed the powders you had available with the bullets you had available. –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Bullet(grains)/BL" Powder Load Density( %) Charge Weight(grains) Velocity(fps) Pressure(C.U.P.) 95 grain V-Max/1.000" IMR 4198 85% 20.1 grs. 2,357 fps. 45,787 cup 90% 21.3 grs. 2,497 fps. 50,970 cup (+P) 120 gr. Speer HC/1.070" Benchmark 100% 22.7 grs. 2,124 fps. 47,551 cup 120 gr. V-Max/1.352" IMR 4198 85% 16.0 grs. 1,963 fps. 45,944 cup 90% 17.0 grs. 2,086 fps. 51,381 cup (+P) –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– BTW,the 6.5 MPC has slightly better case capacity than the 6.5 Whisper. Good Luck, |
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Primery advantages are:
1) Based on the 5.56 Nato/.223 Remington Case. 2) Uses same Bolt, Bolt Carrier Group. 3) Uses same 5.56/.223 Rem. Magazines. 4) Uses same Internals(Parts),Gas Block Parts, and Springs as 5.56/.223 AR-15 5) Can be safely run @ higher pressures than the Grendel. 6) No Bolt,Bolt Thrust Issues vs. the Grendel. 7) Much Lower Overall Cost vs.Grendel. (Complete Upper 6.5 MPC $500-$600 vs. $850-$1250 AA Licensed 6.5 Grendel Complete Upper) 8) Much Cheaper to Reload vs. Grendel. 9) Less feeding Issues. 10) All you really need is a new Barrel w/ Extention. Disadvantages: 1) Does not have as good Case Capacity as the Grendel (Practical Max.for MPC about 28 grs. vs about 31grs. the for Grendel) |
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WOW- Where can you get uppers for the 6.5 MPC and where can you buy or make cases and dies for this caliber ?? Is it made from 223 ??? I love the 6.5 caliber  Google the manufacturer- SSK Industries. They sold me a complete upper (standard grade) for $500. I had to wait 3 months. They also sell 100 pieces of brass for $40. Dies were $65. The chamber checker was $35. I feel like the first person to really try this cartridge out. It feeds great. No need to keep seperate mags. The most time consuming part is trimming the brass. I highly recommend that you use a blow torch and anneal the 223 cases before forming them in the dies. This helps a lot necking up the case to 6.5 from 5.56mm. I highly recommened an electric trimmer! |
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Ok Ed, Ill list the shorest to longest BLs and wont list anything over 1.190"
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––- Manufacturer Weight (grs.) Part # Length (Inches) B.C. ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––- SIERRA 85gr. 1700 .845" .237 SIERRA 100gr. 1710 .925" .282 SPEER 90gr. 1445 .930" .281 HORNADY 95gr. 22601 1.000" .365 NOSLER 140gr. 26725 1.037" .529 BARNES 120gr. 26451 1.040" .441 SPEER 120gr. 1435 1.070" .392 NOSLER 125gr. 16320 1.090" .449 NOSLER 140gr. 16321 1.095" .490 HORNADY 129gr. 2620 1.190" .445 ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––- Best Powders / Fast to Slow ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––- Ramshot: X-Terminator, TAC: (Best combination of Price to High Velocity/Low Pressure Ratio) Accurate: 5744XMR,1680,2015,2230: (Very Good Overall) Hodgdon: Lil Gun,H110,4227,4198 (Excellent Overall, Very Stable Vel./Pressure) Alliant: 2400,410,RL7,RL10X (Excellent Velocity to Pressure Ratio,Low Price Point) Vihtavuori: N110,120,130,133 (Excellent European Powders,Can Be Pricey, Harder to Find) IMR: SR-4759,4227,4198 (Good Overall, Easy to Find) Happy New Year 2010 |
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Hello John, any good AR-15 gunsmiths in Northeast PA area that you may know of, I have a custom (AR-15) chambered barrell blank (In 6.5mm AR-TCU)that needs to be threaded,contoured and have the barrel extention fitted.
Seems finding a good AR 'Smith in the Northeast area that doesn't charge a small fortune for simple AR barell-work has proved a sizable challange ! Thanx, Happy New Year 2010 |
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Ok Ed, Ill list the shorest to longest BLs and wont list anything over 1.190" ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––- Manufacturer Weight (grs.) Part # Length (Inches) B.C. ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––- SIERRA 85gr. 1700 .845" .237 SIERRA 100gr. 1710 .925" .282 SPEER 90gr. 1445 .930" .281 HORNADY 95gr. 22601 1.000" .365 NOSLER 140gr. 26725 1.037" .529 BARNES 120gr. 26451 1.040" .441 SPEER 120gr. 1435 1.070" .392 NOSLER 125gr. 16320 1.090" .449 NOSLER 140gr. 16321 1.095" .490 HORNADY 129gr. 2620 1.190" .445 ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––- Best Powders / Fast to Slow ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––- Ramshot: X-Terminator, TAC: (Best combination of Price to High Velocity/Low Pressure Ratio) Accurate: 5744XMR,1680,2015,2230: (Very Good Overall) Hodgdon: Lil Gun,H110,4227,4198 (Excellent Overall, Very Stable Vel./Pressure) Alliant: 2400,410,RL7,RL10X (Excellent Velocity to Pressure Ratio,Low Price Point) Vihtavuori: N110,120,130,133 (Excellent European Powders,Can Be Pricey, Harder to Find) IMR: SR-4759,4227,4198 (Good Overall, Easy to Find) Happy New Year 2010 Vic, Can you give me a load for the 95 grain bullet using H110? I have that combination at my disposal. |
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Ed, sorry for the mix-up...yeah definately over pressure, I had similar problem when working with some new loads with the 6mm-223 round without listings or load computer...anyway, I tracked down the problem to: haste. I was so eager to give you the load data that I wrote down the data for N120 ( a slower powder) instead of H110 (faster powder)from computer to paper and back, so, the data was actually for the N120 and not H110 ! WOOH.
The correct H110 data w/ Hornady 95gr. @ 2.230 c.o.a.l. w/16" bbl. @ 50,000 C.U.P. Max., should be: 17.1grs.@ 80% L/D @ 2,229 fps. @ 43,567 cup 18.1grs. @ 85% L/D @ 2,369 tps. @ 48,950 cup 19.2grs. @ 90% L/D @ 2,499 fps. @ 54,989 cup(+ P) Again,sorry for the mix-up and I tripple checked the other load data sent to you and its OK. Always start slow and low...I"m really glad you are OK and It wasn't even worse. Ed,I'll be more than happy to send you a box of new .223 brass.. Thanks, Vic |
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Ed, sorry for the mix-up...yeah definately over pressure, I had similar probelem when working with some new loads with the 6mm-223 round without listings or load computer...anyway, I tracked down the problem to: haste. I was so eager to give you the load data that I wrote down the data for N120 ( a slower powder) instead of H110 (faster powder)from computer to paper and back, so, the data was actually for the N120 and not H110 ! WOOH. The correct H110 data w/ Hornady 95gr. @ 2.230 c.o.a.l. w/16" bbl. @ 50,000 C.U.P. Max., should be: 17.1grs.@ 80% L/D @ 2,229 fps. @ 43,567 cup 18.1grs. @ 85% L/D @ 2,369 tps. @ 48,950 cup 19.2grs. @ 90% L/D @ 2,499 fps. @ 54,989 cup(+ P) Again,sorry for the mix-up and I tripple checked the other load data sent to you and its OK. Always start slow and low...I"m really glad you are OK and It wasn't even worse. Ed,I'll be more than happy to send you a box of new .223 brass.. Thanks, Vic Thats okay. I got a lot of brass. I checked the bolt and upper for damage. I think its okay. I actaully even fired the 20.1 grains!. Man, that must have been way over 55CUP! The AR can take a lot of pressure! |
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I would expect it's lower brass costs, takes less powder, lower recoil, uses standard bolt, uses standard .223/5.56 magazines. Have I missed any?
What is the advantage of the 6.5 MPC over the 6.5 Grendal? Is there one? The 6.5 Grendel pushes a 90 grain Speer TNT out of a 16 inch barrel at 2730 fps for comparison purposes. |
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I would expect it's lower brass costs, takes less powder, lower recoil, uses standard bolt, uses standard .223/5.56 magazines. Have I missed any?
What is the advantage of the 6.5 MPC over the 6.5 Grendal? Is there one? The 6.5 Grendel pushes a 90 grain Speer TNT out of a 16 inch barrel at 2730 fps for comparison purposes. Pat, the advantage is only about 100-200 fps. with most loads with equal barrel lengths for the 6.5 grendel vs. 6.5 MPC. |
| Dr69er. Have you gotton the MPC yet? I am thinking about buying a case annealer because the cases need to be annealed before running it through the die. It takes a long time to anneal a lot at one time. Hopefully, when my trimmer comes back, I'll be able to trim and anneal very fast. Let me know if you want me to anneal you some brass. |
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Dr69er. Have you gotton the MPC yet? I am thinking about buying a case annealer because the cases need to be annealed before running it through the die. It takes a long time to anneal a lot at one time. Hopefully, when my trimmer comes back, I'll be able to trim and anneal very fast. Let me know if you want me to anneal you some brass. Payment just went out, should get it within 3-4 weeks...right now I'll be using pre-primed & annealed .223 brass. I'll keep doing the two step 6mm-6.5mm neck expansion process, althougth the Redding 6.5mm TCU dies are great as they can be done in one step. I'll keep you posted with both projects the 6.5 MPC(20" bbl.) and 6.5 AR-TCU(24" bbl.), It we be Interesting how they will compare to each other and the 6.5 Grendel 
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Dr69er. Have you gotton the MPC yet? I am thinking about buying a case annealer because the cases need to be annealed before running it through the die. It takes a long time to anneal a lot at one time. Hopefully, when my trimmer comes back, I'll be able to trim and anneal very fast. Let me know if you want me to anneal you some brass. Payment just went out, should get it within 3-4 weeks...right now I'll be using pre-primed & annealed .223 brass. I'll keep doing the two step 6mm-6.5mm neck expansion process, althougth the Redding 6.5mm TCU dies are great as they can be done in one step. I'll keep you posted with both projects the 6.5 MPC(20" bbl.) and 6.5 AR-TCU(24" bbl.), It we be Interesting how they will compare to each other and the 6.5 Grendel
Whats the two step process? I just size in one go. I know the Grendel will be a little faster, but this baby feeds just like 223. I only bring one mag to the range now. I love the MPC, but JD does not really support his products and he may need a hearing aide. Anyways, I had the barrel threaded for a flash hider. It just felt like something was missing. 
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Dr69er. Have you gotton the MPC yet? I am thinking about buying a case annealer because the cases need to be annealed before running it through the die. It takes a long time to anneal a lot at one time. Hopefully, when my trimmer comes back, I'll be able to trim and anneal very fast. Let me know if you want me to anneal you some brass. Payment just went out, should get it within 3-4 weeks...right now I'll be using pre-primed & annealed .223 brass. I'll keep doing the two step 6mm-6.5mm neck expansion process, althougth the Redding 6.5mm TCU dies are great as they can be done in one step. I'll keep you posted with both projects the 6.5 MPC(20" bbl.) and 6.5 AR-TCU(24" bbl.), It we be Interesting how they will compare to each other and the 6.5 Grendel
Whats the two step process? I just size in one go. I know the Grendel will be a little faster, but this baby feeds just like 223. I only bring one mag to the range now. I love the MPC, but JD does not really support his products and he may need a hearing aide. Anyways, I had the barrel threaded for a flash hider. It just felt like something was missing. http://i81.photobucket.com/albums/j225/usadaytrader/IMG_7832.jpg The two step process is simply running a 6mm TCU expander and then a 6.5mm TCU expander, thus making the case neck expansion with new brass stress-free(brass stays more uniform and flexible. Its definately a slower process,but helps with accuracy and brass life. BTW you were right,It does look better with flash-hider. Ditto for the advantages of the 6.5 MPC and 6.5mm AR-TCU over the 6.5 Grendel overall. 
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Dr69er. Have you gotton the MPC yet? I am thinking about buying a case annealer because the cases need to be annealed before running it through the die. It takes a long time to anneal a lot at one time. Hopefully, when my trimmer comes back, I'll be able to trim and anneal very fast. Let me know if you want me to anneal you some brass. Payment just went out, should get it within 3-4 weeks...right now I'll be using pre-primed & annealed .223 brass. I'll keep doing the two step 6mm-6.5mm neck expansion process, althougth the Redding 6.5mm TCU dies are great as they can be done in one step. I'll keep you posted with both projects the 6.5 MPC(20" bbl.) and 6.5 AR-TCU(24" bbl.), It we be Interesting how they will compare to each other and the 6.5 Grendel
Whats the two step process? I just size in one go. I know the Grendel will be a little faster, but this baby feeds just like 223. I only bring one mag to the range now. I love the MPC, but JD does not really support his products and he may need a hearing aide. Anyways, I had the barrel threaded for a flash hider. It just felt like something was missing. http://i81.photobucket.com/albums/j225/usadaytrader/IMG_7832.jpg The two step process is simply running a 6mm TCU expander and then a 6.5mm TCU expander, thus making the case neck expansion with new brass stress-free(brass stays more uniform and flexible. Its definately a slower process,but helps with accuracy and brass life. BTW you were right,It does look better with flash-hider. Ditto for the advantages of the 6.5 MPC and 6.5mm AR-TCU over the 6.5 Grendel overall.
Thanks Dr. Hmmmm. Running my brass through a 6mm expander might save me from annealing the brass, but I dont want to chance it. I am planning to buy an annealing machine just to anneal these babies. Sitting in front of the TV with a torch and a drill just sucks. I should be able to give a range report this coming weekend. |
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The eliptical (hope I spelled it correct) type expander works best (has a very smooth taper to It) It should save save you from annealing the case necks. What I did was to make sure thay
(the tapered expanders) were highly polished,thus having very litle friction and no stress to the brass as a result...I agree that annealing those cases has to be a real b***h...even case trimming is a pain in the obama ! Anyway, good luck and we all will be looking forward to your next range report
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Well finally got to the range and tried out SSKs load data for Norma 200 powder. It won't cycle! I have a single shot rifle. I am wondering what is wrong. I think the load is too light, but case capacity is getting tight! Ed,what was the combination for your load...what bullet were you using,maybe I can use the load computer. |
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Well finally got to the range and tried out SSKs load data for Norma 200 powder. It won't cycle! I have a single shot rifle. I am wondering what is wrong. I think the load is too light, but case capacity is getting tight! Ed,what was the combination for your load...what bullet were you using,maybe I can use the load computer. 22.9 grains of Norma 200. 95gr vmax |
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Any chance of making major power factor with this, or are the heavier bullets just too long? Hello, you can safely make about 1,560 ft/lbs. with bullet weigths of up 140grs. using 20" bbl. length.
In USPSA type shooting, power factor is calculated by multiplying the bullet mass in grains times the velocity divided by 1000. Currently, to make major power factor you need to have a power factor equal to or greater than 320. pf=bullet(g) x vel(fps)/1000 For a 140 grain bullet to make major power factor, you need a muzzle velocity of 2286 or better. This corresponds to a muzzle energy of about 1624 ft-lbs. So 1,560 ft/lbs with a 140g bullet does not make major power factor. I hope this helps. 320pf |
[ARCHIVED THREAD] - 6.5MPC Range Report (Page 1 of 2)
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