Let me say first off, I'm not new to reloading. I've reloaded .38, .357 Mag, .41 Mag, .223, 30-06 since the seventies. In all, I've had one misfire, a bad primer. I will say I've just started with .45 auto recently, and here's what I've done.
I have a Glock 30, which I've fired reloaded 185 grn Nosler HPs with 5.3 grns of H-38 in the Glock barrel. No problems. I'm not looking for full-bore loads, rather something lighter.
I just installed a Storm Lake barrel so I can shoot lead bullets.
I loaded 10 200 grn SWCs with 5.3 grns of H-38 and about 20 rds with 4.8 grns. Both loads fall into the middle of the powder load for that powder/bullet combo.
It was a disaster. You name it, I had it: fired cases failed to extract, the slide closed on a still-chambered empty casing (click, huh?), stovepipes, failed to feed, not going completely into full battery (a lot), etc. Very discouraging to say the least. R-P 230 grain factory loads ran through like a champ. The Nosler reloads didn't fae much better.
None of the rounds exceeded COL (under max COL in all), the SWCs had about 1/16 or less of an inch shoulder showing. Cases had been flared just enough to start the bullet, no roll crimp, tapered-crimped.
I did notice that the SWC cartridges did NOT drop into the barel chamber as deeply as a jacketed bullet, either factory or reloaded.
Obviously something is wrong with my setup for .45. It may just be a SWC problem for the Glock; I've heard they aren't keen on them. Since I only bought 100 for testing, there's no money lost and I can get 200 grn lead rd nose.
I'm open to all suggestions. I was really looking forward to putting lead through the SL barrel.