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Posted: 2/10/2012 8:52:45 PM EDT
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Ok, I am looking for info on the .300. I have my doubts about it though. Here are my intended uses, and questions.
I want a gun to shoot pigs, deer, paper, and whatever else gets in the way. While I want a gun with a little more juice to it than a .223, I could care less about the subsonic aspect of this round. What are the ballistics going to be like with a 125ish gr. bullet, out to say 200 yards??? I believe I read that that would motor out at about 2200ish fps. or so. Is that going to be enough to be "hot"? Or is it lobbing bowling balls so to speak? I like the idea of the round. It surely has some unique characteristics to it. But, if I am going to get the same amount of downrange power as a 77SMK out of a .223, then what is the purpose? Thanks in advance for the help guys, I appreciate it, L2B |
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Quoted:
Ok, I am looking for info on the .300. I have my doubts about it though. Here are my intended uses, and questions. I want a gun to shoot pigs, deer, paper, and whatever else gets in the way. While I want a gun with a little more juice to it than a .223, I could care less about the subsonic aspect of this round. What are the ballistics going to be like with a 125ish gr. bullet, out to say 200 yards??? I believe I read that that would motor out at about 2200ish fps. or so. Is that going to be enough to be "hot"? Or is it lobbing bowling balls so to speak? I like the idea of the round. It surely has some unique characteristics to it. But, if I am going to get the same amount of downrange power as a 77SMK out of a .223, then what is the purpose? Thanks in advance for the help guys, I appreciate it, L2B The 300BLK would be an excellent choice for what you are looking to do with it. With a 100 yard zero is 6.6 inches low at 200 yards so no lobbing bowling balls. Here is some of the comparisions to help you: Out of a 9 inch barrel 5.56mm, M855 2558 ft/s, 901 ft-lb 300 BLK, 125gr OTM 2000 ft/s, 1109 ft-lb (23% over 5.56mm) 7.62x39mm, 123 gr* 2022 ft/s. 1117 ft-lb 6.8 SPC, Hornady TAP 110* 2157 ft/s. 1136 ft-lb The conversions is the easiest around as you don't have to buy any modified mags or bolts. Just a barrel change. The ammo is plentiful and cheaper than almost all the other AR varients. The 300 BLK give you the barrier penetration and knock down power of an AK with more variety of ammo. The added bonus is if you put a suppressor on it then you have a gun that no other AR variant can do is cycle subs and supersonic reliably. You can check out AAC site for more info: 300BLK |
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Ok, I am looking for info on the .300. I have my doubts about it though. Here are my intended uses, and questions. I want a gun to shoot pigs, deer, paper, and whatever else gets in the way. While I want a gun with a little more juice to it than a .223, I could care less about the subsonic aspect of this round. What are the ballistics going to be like with a 125ish gr. bullet, out to say 200 yards??? I believe I read that that would motor out at about 2200ish fps. or so. Is that going to be enough to be "hot"? Or is it lobbing bowling balls so to speak? I like the idea of the round. It surely has some unique characteristics to it. But, if I am going to get the same amount of downrange power as a 77SMK out of a .223, then what is the purpose? Thanks in advance for the help guys, I appreciate it, L2B The 300BLK would be an excellent choice for what you are looking to do with it. With a 100 yard zero is 6.6 inches low at 200 yards so no lobbing bowling balls. Here is some of the comparisions to help you: Out of a 9 inch barrel 5.56mm, M855 2558 ft/s, 901 ft-lb 300 BLK, 125gr OTM 2000 ft/s, 1109 ft-lb (23% over 5.56mm) 7.62x39mm, 123 gr* 2022 ft/s. 1117 ft-lb 6.8 SPC, Hornady TAP 110* 2157 ft/s. 1136 ft-lb The conversions is the easiest around as you don't have to buy any modified mags or bolts. Just a barrel change. The ammo is plentiful and cheaper than almost all the other AR varients. The 300 BLK give you the barrier penetration and knock down power of an AK with more variety of ammo. The added bonus is if you put a suppressor on it then you have a gun that no other AR variant can do is cycle subs and supersonic reliably. You can check out AAC site for more info: 300BLK All of that. Im in NY so pigs will take over the aerospace industry long before Ill be able to legally own a supressor so it sounds like were in the same boat. I built the rifle pretty much for hunting deer and the Supersonic 300 AAC offering (especially the Atlanta Arms, Hornady and Barnes loadings) are plenty for the type of hunting that I do where 99% of the shots Ill ever make are on the side of a heavily wooded mountain at 75 yards and less. 2 Things sold me on the round; (1) I didnt have to buy new mag's and (2) The round is ballistically similar to a 30-30 which is a round that I have quite a bit of hunting and shooting experience with. |
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The subsonic aspect of this round is what makes it Sounds like 6.8 spc or a 6.5 is what you may want Subsonic is cute at the range and if you are a door kicker in the crap holes of the world and aren't able to us expanding ammo anyway so SMKs are all you can use for killing things. Eventually expanding subsonic bullets are going to be widely available but 30-30 ballistics in an AR are perfectly acceptable for some peoples' needs. To answer the original question, one can set up a 125 grain load at about 2200-2250 fps out of a 16" barrel with a 30-ish yard zero that is zeroed again at 200 yards and has about a 3" rise and fall. ETA, OP, go to the 300 BLK Talk forum. A few fanboys there but you can get your questions answered by Robert Silvers and several ammo manufacturers that are putting together hunting loads and don't have to deal with 6.8 or 6.5 fanboys spamming your thread with baseless comments. |
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Speer 130 gr HP 300 BLK
Altitude : 2800 ft Temperature : 49.0152 °F Bullet Weight : 130 gr BC : 0.263 Xwind Speed : 100 mph Xwind Angle : 100 ° Muzzle Velocity : 2174 fps Zero Range : 175 yards Target Speed : 0 mph Angle : 0 degrees Range Height Hmils Wind Wmils Vel Energy TOF Lead LClicks ––––––- ––––––- ––––––- ––––––- ––––––- ––––––- ––––––- ––––––- ––––––- ––––––- 0 -1.50 0.0 0.0 0.0 2174.0 1364.2 0.000 0.0 0.0 25 0.37 0.4 1.0 1.1 2104.1 1277.9 0.035 0.0 0.0 50 1.75 1.0 4.1 2.3 2035.6 1195.9 0.071 0.0 0.0 75 2.61 1.0 9.3 3.4 1968.3 1118.2 0.109 0.0 0.0 100 2.90 0.8 16.8 4.7 1902.5 1044.7 0.148 0.0 0.0 125 2.59 0.6 26.7 5.9 1838.0 975.1 0.188 0.0 0.0 150 1.64 0.3 39.0 7.2 1775.1 909.4 0.229 0.0 0.0 175 0.00 0.0 54.0 8.6 1713.7 847.7 0.272 0.0 0.0 200 -2.38 -0.3 71.7 10.0 1654.1 789.7 0.317 0.0 0.0 225 -5.56 -0.7 92.3 11.4 1596.2 735.4 0.363 0.0 0.0 250 -9.59 -1.1 115.8 12.9 1540.1 684.6 0.411 0.0 0.0 275 -14.54 -1.5 142.4 14.4 1485.8 637.2 0.460 0.0 0.0 300 -20.48 -1.9 172.1 15.9 1433.6 593.2 0.512 0.0 0.0 325 -27.48 -2.3 205.2 17.5 1383.4 552.4 0.565 0.0 0.0 350 -35.61 -2.8 241.7 19.2 1335.5 514.8 0.620 0.0 0.0 375 -44.97 -3.3 281.7 20.9 1290.1 480.4 0.678 0.0 0.0 400 -55.63 -3.9 325.2 22.6 1247.4 449.1 0.737 0.0 0.0 425 -67.70 -4.4 372.2 24.3 1207.5 420.9 0.798 0.0 0.0 450 -81.27 -5.0 422.7 26.1 1170.5 395.5 0.861 0.0 0.0 475 -96.42 -5.6 476.6 27.9 1136.6 372.9 0.926 0.0 0.0 500 -113.27 -6.3 534.0 29.7 1105.7 352.9 0.993 0.0 0.0 Speer 130 gr over 17.5 gr H110 16" barrel -not surpressed! 
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Quoted:
The subsonic aspect of this round is what makes it Sounds like 6.8 spc or a 6.5 is what you may want +1, I love my 300 WTF but really only shoot it suppressed. If I'm hunting something that I can't use a suppressor on or shooting at longer distances (>150 yards), I use the 6.8 SPC. I'm getting 2500 FPS out of a 10.5" barrel using Barnes 95 TTSX bullets. It is a winning combo for me. You can't go wrong with either but IMHO the 6.8 fits your criteria better. |
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Thanks guys for the help. Now I'm more confused than ever! LOL.
Here is my balance sheet so far: .300 - Easily available brass, no bolt change, wide variety of bullets. Not heavily impressed by the ballistics, not shooting suppressed. With the muzzle energy of a 125, what would the comparison be with a 77 gr. .223? Close? Possibly so, since the M855 is only like 200 less at the muzzle. 6.8 - I love that round. Has good ballistics, will probably kill "bigger" than what it is. No readily available cheap brass, yes there are some factory rounds, but cost kinda kills this deal. 6.5 - I have been very interested in this as well. Has great ballistics, certainly a step up in power, great range, Wolf is coming, making this a great round to train/blast with. Not sure that this has many downsides, other than if the Wolf steel doesn't make an appearance. So I guess the 6.5 seems to be the more logical choice in this whole deal. A 7.62x39 would be great, but the whole magazine dilemma, and feed issues, make that kind of a mess. Thanks again for the input guys. L2B |
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Man, I feel bipolar on this deal! I really like the idea of the .300. What is that thing going to do at 200 yards? Shooting 125ish gr. loads, is it going to have considerable more juice than a .223? That may sound like a dumb question, but I really am hung up on that. That is probably the max I want out of it. I just want it to be solid at that. Will that load out perform a 6.8 at 200 yds.?
The brass, and the standard bolt, and all of the traction that this round is getting, is really appealing. I can't remember where I heard or read it, but it seems that I read Barnes is coming out with a .300 specific bullet, with thinner petals, as to get get full expansion out of a TSX. Thanks again for bearing with me through my self torn dillema! LOL. L2B |
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I've been reading this thread, and several other threads on the 300blk. What appeals to me is that the only difference between a 556 rifle and the 300blk rifle is the barrel. I like that I can keep everything the same, as far as mags and bolts. I have a shit ton of 556 brass (and access to all the 556 range brass than I can get my hands on). One day I may get a suppressor for it, but for right now, its going to be a range toy as I can't hunt much in Ohio with a rifle anyway. I've been wanting something different, as far as AR's go, and to me, between the free 556 brass and the common parts, the 300blk makes since. YMMV. |
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