With my homebuilt 16" PCC (AR 9mm) I was hoping to run one load which is my normal 9mm minor load. I found that this load runs 150 FPS faster than in my 5" barreled pistol. This is with e3 powder which is very fast burning. A more conventional powder I would think would be an even bigger increase. The serious USPSA gamers are reducing their loads and still not getting down too far in their PCC guns.
Last edited by Spartan1980; 03-16-2018 at 10:24 PM.
I loaded up some Sierra 90 HP's in 9mm with a heavy dose of CFE pistol. These loads are in major 9 territory and I got an average velocity of 1781fps. I fired two bullets into clear gel and both came in just under 9 inches. The recovered weights were 41gr and 39gr. Lead and jackets started tearing off at about the two inch mark. No sign of pressure so I could probably bump up the charge but the over all length was so short it didn't like to feed in the Glock 17 I was using. That was fun but now I think I will slow it down and see if I can turn it into a mild recoiling steel load.
We could isolate Russia totally from the world and maybe they could apply for membership after 2000 years.