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September 6, 2012, 08:10 PM | #1 |
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Join Date: June 9, 2012
Location: central TX
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What grain to use in long range target shooting
What is the better grain bullet for long range target shooting with a AR15 24' ss barrel 1:8 twist
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September 6, 2012, 11:17 PM | #2 |
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Join Date: February 12, 2001
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Assuming you're talking about .223/5.56, then, according to Berger bullets, a 1:8 twist barrel will limit you to conventional (copper-jacketed lead) bullets weighing 82 grains or less.
If you go to monometal (solid copper or gilding metal) bullets, you will be limited to even lighter bullets.
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September 7, 2012, 12:36 AM | #3 |
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The heavier the bullet (assuming equally streamlined design) the less wind drift. Should be able to shoot the Sierra 77 gr match king BTHP with 1:8 twist. If you go up to 80 gr you may have to seat longer than magazine allows and single load by hand.
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September 7, 2012, 02:14 PM | #4 |
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On a day with light wind a 75 Hornady or 77Sierra will work . 80 grainers can handle wind better but,as NWPilgrim posted, longer then standard OAL necessitates single loading.
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