73MCRD Full Member Banned ! Minuteman Feb 23, 2003 551 34 Broken Arrow, Ok. Jul 30, 2020 #1 Jul 30, 2020 #1 May be a stupid question but I'm possibly looking to buy a lot of steel .556 ammo. Is this ammo harder on barrels vs. copper fmj?
May be a stupid question but I'm possibly looking to buy a lot of steel .556 ammo. Is this ammo harder on barrels vs. copper fmj?
Ledzep Bullet Engineer Full Member Minuteman Supporter Jun 9, 2009 4,567 6,219 Hornady Jul 31, 2020 #2 Jul 31, 2020 #2 (Copper plated) steel jackets cause faster wear than copper jackets. Steel cores under copper jackets won't cause increased wear. If you're talking about M855/SS109 nothing to worry about. Reactions: 73MCRD
(Copper plated) steel jackets cause faster wear than copper jackets. Steel cores under copper jackets won't cause increased wear. If you're talking about M855/SS109 nothing to worry about.
