Quote Originally Posted by simgre View Post
I use a RCBS 38-158 CM mould. It's a RNFP designed for Cowboy action and going through lever guns. Use a 20-1 alloy or range scrap with some lead.

If using .38 spl cases, seat the bullets so the COL is equal to the .357. The timing of the Marlin cartridge lifter is designed as such. More preferably, use magnum cases. You can still load special data in magnum cases.
I had thought about that but worried it might have adverse effects somewhere down the line