NFOA MEMBERS FORUM
General Categories => The NFA Corner => Topic started by: mustang5o on January 30, 2014, 09:37:05 PM
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Planning a 10.5" AR build (5.56/223). Should I be concerned with twist rate? I know you generally go by the ammo of which I mostly shoot 55gr FMJ. What's a good self defense ammo in 5.56 or .223?
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If you ever plan on shooting heavy bullets(69+ grains) then get the 1/7. Otherwise, a 1/9 twist barrel should be just fine.
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As far as SD ammo, I can't offer much as I have not done much research into the topic, but I have heard good things about Hornady Tap FPD.
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I just built an 11.5 and went with a 1:7 twist. It handles the 55 grain just fine, but can also shoot heavier stuff. I don't really see a reason to go with 1:9 when 1:7 or 1:8 will do everything that 1:9 will and more.
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Thanks for the information. Seems most of what I'm finding is 1:9 but I'll keep looking until I ready to...ahem, pull the trigger.
As far as SD ammo, I can't offer much as I have not done much research into the topic, but I have heard good things about Hornady Tap FPD.
I was thinking the same thing but it looks like they aren't making any right now.
http://www.hornady.com/store/223-Rem-55-gr-FPD/ (http://www.hornady.com/store/223-Rem-55-gr-FPD/)
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Thanks for the information. Seems most of what I'm finding is 1:9 but I'll keep looking until I ready to...ahem, pull the trigger.
I was thinking the same thing but it looks like they aren't making any right now.
http://www.hornady.com/store/223-Rem-55-gr-FPD/ (http://www.hornady.com/store/223-Rem-55-gr-FPD/)
.223 and 5.56x45 in stock here:
http://www.sgammo.com/product/hornady/20-rd-box-223-hornady-tap-55-grain-urban-ammo-83276 (http://www.sgammo.com/product/hornady/20-rd-box-223-hornady-tap-55-grain-urban-ammo-83276)
http://www.sgammo.com/product/hornady/200-rd-case-223-hornady-tap-55-grain-urban-ammo-83276 (http://www.sgammo.com/product/hornady/200-rd-case-223-hornady-tap-55-grain-urban-ammo-83276)
http://www.sgammo.com/product/hornady/20-round-box-556mm-hornady-tap-le-55-grain-gmx-barrier-ammo-81255 (http://www.sgammo.com/product/hornady/20-round-box-556mm-hornady-tap-le-55-grain-gmx-barrier-ammo-81255)
http://www.sgammo.com/product/hornady/200-round-case-556mm-hornady-tap-le-55-grain-gmx-barrier-ammo-81255 (http://www.sgammo.com/product/hornady/200-round-case-556mm-hornady-tap-le-55-grain-gmx-barrier-ammo-81255)
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Here's a great deal on a complete 1:7 12" upper.
http://palmettostatearmory.com/index.php/psa-chf-12-5-56mm-1-7-a2-profile-upper.html (http://palmettostatearmory.com/index.php/psa-chf-12-5-56mm-1-7-a2-profile-upper.html)