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Posted: 1/24/2009 11:17:20 AM EDT
[#1]
62 thru 70
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Posted: 1/24/2009 8:47:18 PM EDT
[#2]
Quoted:
New here with a S&W MP 15. Can some one point me in the right direction on bullet weight verse Barrel twist. Trying to decide which one works best in a 1/8 twist. A 55 grain or 70 grain bullet. I have searched the forum and can not find the info. I believe a smaller grain tumbles more but I am not sure. Thanks 1/8 will get you 77 grain bullets no problem... it's the length of the round and velocity not the weight that determines twist.. 1/7 twist was called for to stabalize traces. and is overkill for many match rounds. If your Smith is the one with a stainless barel it will outshoot many premium rigs I know where they get the barrels and they are high quality. |
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Posted: 1/25/2009 6:44:23 AM EDT
[#3]
Quoted:... I believe a smaller grain tumbles more but I am not sure.
The 55 gr will pretty much explode and fragment on impact with anything. This is why its a bad choice for shooting through barriers and such. The current rule of thumb is "heavier is better". Further Reading on Ammo Choices I myself like the 62gr Speer Gold Dot. |
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Posted: 1/25/2009 1:53:55 PM EDT
[#4]
Thanks guys. Right now have been stocking up on some hotshot and wolf 70 grain. I really appreciate you help. Still new here and try to listen to wisdom of the guys who know. Take care.
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