When being shot in a TC, do you crimp straight wall cases or do you try to seat the bullet against the rifling like a rifle cartridge? I'm going to experiment with a .41 mag for PHSC with cast bullets and need to know how to load them. I know I may be off the beaten path, but it's what I have and want to see if it would work. I'm not looking for loads, just how to load the ammo. Any help would be appreciated.

Depends on the powder. Try both and see which creates the most accurate load. & I think the .41 is a great cartridge. I have shot it for years!

Steve W.

Don't think you will be able to seat bullet out far enough to touch in a T/C,they have very long throat.Not much need for a crimp with cast bullets in a single shot, start with a reduced load,pressure builds quick in a closed action

+1 what Steve said. My experience with straight wall cartridges in a TC have shown a crimp usually works best. But as Steve said a lot of that has to do with the powder you select. I found that 296 and 4227 like to have a crimp to get the pressure up as the bullet releases. My experiments didn't really show a big preference either way so I just crimped my rounds in case I wanted to use them in a revolver. Just another thing to experiment with. 41 Mag is a fantastic cartridge especially with cast bullets. Have fun experimenting.

This project is still in the planning stages. I just wanted to know if the crimp made any difference. I guess I'll find out when I get some ammo loaded and get to the range. Thanks for your help.

While all my straight wall case rounds are minute of ram accurate, they are one ragged hole accurate at 50 meters. I have always loaded them like any other pistol round with a crimp. Your milage may vary.

I don't shoot cast, but my 338 whisper#2 is straight wall an it shoots better with a crimp than without.

Does seem to be a situational thing. Some of my cast bullet loads prefer being crimped, but some actually get run with the case flare left intact! "Anti-crimped" as it were. And that's in revolvers. But not stout loads.

If you are shooting any kind of ball powder, it usually requires a pretty
heavy crimp for good ignition.