+1 We have been using pressed copper ammunition for training since 2011. Prior to 2011 my SIG 226R DAK in 40 S&W had 3000 rounds of copper jacketed ammunition fired through it. Since 2011 it has been fed a steady diet of pressed copper bullets and ended up being practically a smooth bore after 5000 rounds (according to my logbook). Every round I fired would keyhole and the accuracy suffered. With a new barrel everything is fine. My agency swaps out barrels far quicker now with pressed copper than they did with ammunition with copper jackets. To put it in perspective my prior issued firearm, a Beretta 96D in 40S&W had about 15 000 rounds of jacketed ammunition fired and the barrel was still fine. I guess this is not so bad if barrel changes are easy. I would be reluctant to use copper in any firearm with hard to replace/expensive barrels.
We had a lot of issues finding pressed copper ammunition that would function well out of our C-8s. We tried a few brands that would tumble or was not even remotely close to our point of aim with duty ammo.
We have an indoor range and the amount of copper swirling around us is pretty bad at times. The floor is covered with copper dust after each session and I can taste copper. It seems to clog up our air filters a lot faster. I acknowledge that lead poisoning is bad but I'm not so sure that exposure to copper is not without risks.
Last edited by homer76; 04-19-2018 at 12:06 PM.
It's not denial. I'm just very selective about the reality I accept.
Ultra high BC 30 cal 155 gr!
Haun0002
A 308 hunting bullet