I believe that the JP bolt is designed so that the hammer won’t hit the firing pin until the bolt is all the way forward to prevent out of battery ignition.
Is the bolt all the way closed when this happens?
I have tried some different cheap factory loads so far at 120yds. Cheap herters 115 gr fmj have grouped the best. About the size of my fist. Going to try to load some and see what I can do.
Zombies in the Heartland 3-gun match
May 31st - June 2nd 2019
Grand Island, NE
Amateur, tactical, open, and PCC divisions
https://practiscore.com/zombies-in-the-heartland-2019/register
I have had good luck with them so far. The only complaint I have is half of them are one way in the package and half of them are flipped the other way in the package.
I liked the no external modifications, internal modifications are fine rules.
Pretty simple, and I think the fellow shooters probably policed themselves on the rule infringements before the RO would anyway.
Just did the exact same thing Sunday. Even cut the case just like you did to confirm my suspicions.
Whoever brings that crap to the range should be publically caned.
I have a used MBX ½x28 I will sell for$50. It's what I paid, I have another one on a different gun and like it. I didn't think of verifying thread pitch when I bought it. I needed ½-36.
I am assuming that they don't go ahead and serialize the gun without contacting the buyer first? Just curious if they ask you if you want the custom serial number, and how close to the end of the build do they do it?