Rifles
Rifles
Posted on May 1, 2019
5.56 vs .223: What's The Difference Anyway? - The Truth About Guns
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Rifles
Rifle Shooting
Ammo
Firearms and Guns
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TSgt Joe C. PO3 Steven Sherrill CW3 Kevin Storm SSG (Join to see) SGM Steve Wettstein SMSgt Thor Merich MSG (Join to see) PO1 John Johnson MAJ Ken Landgren LTC Greg Henning PVT Mark Zehner MSG Tom Earley Alan K. SPC Mark Huddleston PO1 H Gene Lawrence SGT Elizabeth Scheck Sgt Deborah Cornatzer SSgt Boyd Herrst SPC Diana D. Sgt Wayne Wood
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I've always understood that you can fire .223 through a rifle chambered for 5.56...but shouldn't the other way 'round. I fire .223 through my 5.56, 1:7 sometimes, and haven't seen any negative results...I'm not "high speed" enough to tell if I'm more accurate at say 100- 200 yrds. when shooting NATO rounds vs. .223...but I do know the frangible stuff is hard(-ish) to find and costs more.
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CW5 Jack Cardwell
Correct you can fire .223 in a 5.56 chamber but not the other way around. No matter .223 or 5.56 the twist rate is a matter of bullet weight. Heavier bullets like slower twist rates, normally. M16A1 had a fast twist rate, 1:12. Bullet was 55 great. M16A2 and versions after that had a 1:7 slower twist for the current 62 gr bullet.
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