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Posted: 11/19/2009 8:35:56 PM EDT
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I've got 500 SS109 projectiles inbound. What should I put them on top of? I've got plenty of LC brass, and CCI41 primers. What powder should I use and how much should I start off with?
Roy |
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I've got 500 SS109 projectiles inbound. What should I put them on top of? I've got plenty of LC brass, and CCI41 primers. What powder should I use and how much should I start off with? Roy How about buying a reloading manual or three. Don't trust internet recipes. |
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In his defense, I have Speer. Sierra, Nosler and Hornady reloading manuals and none have ss109 bullets listed, let alone 62 grain bullets. Sierra is the closest with 63 grain bullets listed.
I do remember finding loads for m855/ss109 but I cant find the link or the doc. All I could find was this pic which lists the mil spec load of 26.1gr of WC844. 
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Military Loads w/ Commercial Powder
www.frfrogspad.com/miscellq.htm#duplicate Militay Loads w/ Military Powder http://www.gun-shots.net/ballistics-chart.shtml The controversy (duplication of military 5.56 mm) http://www.ar15.com/forums/topic.html?b=6&f=42&t=255569&page=1 Aloha, Mark |
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My M855 duplication load is:
IMI 62grain SS109 bullet, 25 grains of H335 powder, CCI 450 primer and LC brass. The Cartridge overall length is 2.23" which is about at the top of the channelure(sp) for most of the bullets. The average velocity at 80 degrees F out of a 20" Colt AR15 Sporter II is 3038 feet per second. |
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I've got 500 SS109 projectiles inbound. What should I put them on top of? I've got plenty of LC brass, and CCI41 primers. What powder should I use and how much should I start off with? Roy Sir, FWIW I asked a similar question regarding use of VV N135 and the 62gr bullet a while back. As might be expected the VV web site lists the recommended charge weights of the various VV powders recommended for this bullet. Check out their site, you'll have to download the data. HTH, 7zero1. |
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Quoted:
Quoted:
I've got 500 SS109 projectiles inbound. What should I put them on top of? I've got plenty of LC brass, and CCI41 primers. What powder should I use and how much should I start off with? Roy How about buying a reloading manual or three. Don't trust internet recipes. All good info, except of course, the above; If it was in my reloading manuals, I wouldn't be asking. I have Speer, Hornady, and Sierra manuals. |
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Quoted:
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I've got 500 SS109 projectiles inbound. What should I put them on top of? I've got plenty of LC brass, and CCI41 primers. What powder should I use and how much should I start off with? Roy How about buying a reloading manual or three. Don't trust internet recipes. All good info, except of course, the above; If it was in my reloading manuals, I wouldn't be asking. I have Speer, Hornady, and Sierra manuals. Actually a close load is in your Speer manual. That is how I came up with these loads: SS-109 loads, I used the start loads for the Speer 62 gr FMJBT (lead core), and worked up. In my rifle these loads are safe, and are 1/2 gr below the first signs of pressure. All these loads use LC brass trimmed to 1.750, neck deburred inside and out. Primer pocket swaged, Win SR, pulled SS-109 62 gr FMJBT seated to mid cannelure. Crimped with a Lee FCD (factory crimp die). My rifle has a 1 in 9 twist, 16 ", 5.56 chamber. AA-2230, 24.5 grs. Shoots great. H-335, 25.0 grs. OK load, just that other powders are more accurate. ( In my rifle) BLC2, 26.0 grs. My favorite SS-109 load. Varget, 26.5 grs. Most accurate SS-109 load in my rifle. Just a hassle to load. Tac, 26.0 grs. Another good load. W-748 25.5 grs. Not accurate in my rifle, your rifle might like. Remember to work your loads up, your rifle may be different from mine. YMMV. Good luck |
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Thanks guys, now I've got some stuff to work up. My Speer manual is old ("number 9") and doesn't have anything betwixt 55 and 70 grains. I've got Varget and AA2520 on hand, and I'm thinking a keg o' W748 is in my future, and maybe one of something else too. H335 keeps coming up, and so does AA2230.
I'm loading this primarily for my carbine, which is 16" 1/7 twist. I also have a 20" Hbar 1/9 twist that I'd like to find a decent compromise load that works with the carbine as well. Probably wishfull thinking, but ya never know. |
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Quoted:
Thanks guys, now I've got some stuff to work up. My Speer manual is old ("number 9") and doesn't have anything betwixt 55 and 70 grains. I've got Varget and AA2520 on hand, and I'm thinking a keg o' W748 is in my future, and maybe one of something else too. H335 keeps coming up, and so does AA2230. I'm loading this primarily for my carbine, which is 16" 1/7 twist. I also have a 20" Hbar 1/9 twist that I'd like to find a decent compromise load that works with the carbine as well. Probably wishfull thinking, but ya never know. Speer didn't list the 62 gr bullets until manual #12. A good reason to buy a new manual, the latest one is #14. Some new powders have come out since #9. 
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| I loaded up some rounds (five rounds each in six equal increments) with H335 and went to the range today. The two hottest loads were the most accurate, although no more so that the XM855 I took as a benchmark. The really good news is that I didn't blow myself up, and had no overpressure signs on any of the primers. So back to the loading bench I go. Tonight I loaded with Varget. This time, ten rounds in each of five increments from min to max according to the Hogden website for a 63 grain bullet. Back to the range Monday. |
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I use 24.0 grains of TAC and a Wolf 5.56 primer, lake city brass for my general purpose SS109 plinking load. It runs around 2900 out of my 18.5" Mini 14. It's a good bit less than max pressure and velocity. I'm fine with that.
Longer brass life is more important to me than squeaking an extra 100-150 fps out of a load if it's for plinking. |
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I loaded up some rounds (five rounds each in six equal increments) with H335 and went to the range today. The two hottest loads were the most accurate, although no more so that the XM855 I took as a benchmark. The really good news is that I didn't blow myself up, and had no overpressure signs on any of the primers. So back to the loading bench I go. Tonight I loaded with Varget. This time, ten rounds in each of five increments from min to max according to the Hodgdon website for a 63 grain bullet. Back to the range Monday. Best I ever did with SS-109 bullets was with Varget. 2.5 to 3 inch 10 shot groups at 100 yds. Same day, same rifle, I was getting 1 to 1 1/8 inch 10 shots groups with Hornady 68 gr BTHP and Varget at 100 yds. 68 gr BTHP, BLC2 not near as good as Varget in my rifle. Good luck with your loads. 
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dryflash3,
Is there going to be any real difference in pressure with a 1/7 vs. your 1/9 in a 16" barrel? I haven't worked up to your load yet. I've got a few at 23.5, and 23.8 gns of AA2230 for the morning. Thanks, DBAR Edit: Have you done anything with AA2230, and Sierra's 69gn HPBT? I worked up to 22.5 without any signs of pressure, and I've got a few loaded up at 23gns for the morning as well. |
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dryflash3, Is there going to be any real difference in pressure with a 1/7 vs. your 1/9 in a 16" barrel? Both of my AR's are 1 in 9. I don't believe so. I haven't worked up to your load yet. I've got a few at 23.5, and 23.8 gns of AA2230 for the morning. Always safer to do your own work ups. Rifles do vary. Thanks, DBAR Edit: Have you done anything with AA2230, and Sierra's 69gn HPBT? I worked up to 22.5 without any signs of pressure, and I've got a few loaded up at 23gns for the morning as well. Only loads I used AA-2230 with was 55 and 62 gr FMJBT's. With the 69 gr Sierra, I am using Re-15. As accurate as Varget, but will measure through a powder measure. Sorry, not much help tonight. 
Thanks for the kind works in the IM. |
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dryflash3, Is there going to be any real difference in pressure with a 1/7 vs. your 1/9 in a 16" barrel? Both of my AR's are 1 in 9. I don't believe so. I haven't worked up to your load yet. I've got a few at 23.5, and 23.8 gns of AA2230 for the morning. Always safer to do your own work ups. Rifles do vary. Thanks, DBAR Edit: Have you done anything with AA2230, and Sierra's 69gn HPBT? I worked up to 22.5 without any signs of pressure, and I've got a few loaded up at 23gns for the morning as well. Only loads I used AA-2230 with was 55 and 62 gr FMJBT's. With the 69 gr Sierra, I am using Re-15. As accurate as Varget, but will measure through a powder measure. Sorry, not much help tonight.
Thanks for the kind works in the IM. Thanks for the info. I'm sure others appreciate it as much as I do. I think I'm going to use the AA2230 for plinking rounds, and ck into some RE-15 for the Long distance load development. I'm also going to have to take a look at some 75, or 77gn projectiles. DBAR |
Loaded some more rounds and took to the range with my rifle (intead of my carbine) to see if the same loads the carbine likes are good for the rifle too. The carbine seemed to like 23 grains and 25 grains of AA2520 under a 62 gr PRVI SS109 projectile. The Rifle did too, with the 25 grains giving the best group. All are at 100 yards on a three inch outer ring:
Then I tried out some other loads I'm working on, and found a nice combination with a 69 gr SMK over 23.7 gr of AA2520: 
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I went through the same questions when I started reloading.
I bought half a dozen reloading manuals and each one had a different formula. I finally gave up and did the following. I bought a chrony and got the fps from IMI 55 and 62 grain. Then Federal XM 55 and M 62 grain. Then I loaded my ammo to the fps of these two averages per bullet. I use H335, LC brass, and #41 CCI milspec or Wolf magnum primers. I get very close to within the fps out of a 16" barrel without signs of over pressure. My fps is 3095 with 55 grain and 62 is 3000 fps. You really a chrony to do this reloading thing correctly. |
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