I really love 1911's. I've built them for years. I love Hi Power (40's) too. But for the past 10 years or so, I only carry Glocks. They're light, and are the only handguns I know of that out of the box are completely reliable, extremely accurate, rust resistant, safe, simple, and don't have...
Yeah, they're Czech. I have an older one marketed through Charles Daly. It's a pretty good receiver. I haven't built on it yet. It seems about the same quality as a Mark X or Santa Barbara 98.
Most likely it's an egg shapped or "out of round" chamber. Most factory rifles are that way. Unless you get the case back in the chamber oriented the same way it was when it was last fired, it will be hard to chamber.
Check case length and bullet seat depth first. If it's ok, try a small base die.
I wipe cases off before sizing, then tumble after sizing. No worries with neck and mouth deformation with vibratory case cleaner. And of course the lube is gone
They were not super high grade guns but those receivers are good. Wouldn't mind having a few.
I don't know for sure what the twist is. Probably 1-9. You can check it yourself:
Use a good cleaning rod with ball bearing handle. Put a bore brush or jag with patch on it. Start it into the bore, then...