Just curious - what happened?
Met blasternaz at the range with his gun and my gun.
- I shot his gun; it worked. He shot my gun; it didn't work. So, we ruled out "shooter error" -- I wasn't holding it wrong or too tight or too loose or anything. It's the gun, not the shooter.
- I shot his gun with my magazines. They worked. I shot my gun with his magazines. They didn't work. OK, we ruled out bad magazines. It's the gun, not the magazines.
- We tried many brands of ammo in his gun. They worked. We tried many brands of ammo in my gun. They didn't work. So, we ruled out the ammo. It's the gun, not the ammo.
That left us with -- nothing. The gun has been completely worked over/polished by the gunsmith in North Carolina that somebody recommended, and still doesn't work. The barrel and all springs have been replaced. No help.
blasternaz helped me determine that I am not crazy (at least not with regard to this particular matter). The gun really is snakebit. (And it cost me a fortune in high-priced ammo to do all that testing.)
A couple weeks later, I tried rounding off the edge of the frame itself, right below the barrel feed ramp, with emery paper wrapped around a dowel. That was promising! It seemed to work. Worked for about three mags, but had one failure to feed on the fourth mag. Pelosi. Shot one more magazine with no malfunctions, and then I was out of JHP ammo.
I have put it aside for a while; busy with other things. When I get some time, I will do a little more rounding on the frame, buy some more expensive ammo, and try again.