My dad is suddenly interested in converting a straight-walled case. I guess I've talked to him so much about my .45 Win Mag conversion that he has "seen the light"! Actually he has always been interested in the .357/44 Bain & Davis round, and since the .41 would be in the same ballpark, it would make for an interesting round albeit in an autoloader-friendly rimless design. Ultimately, he would like to have an autoloading .41 rifle.
His hangup is that he prefers the .41 over the .44. So he is looking at the .41 bullet size with a 1.5" case.
I read Gunter's post and it was set to 1.7" for reasons unknown. That looks *perfect* when compared side-by-side to a 7.62x39 cartridge!
Due to pressure concerns, .41x1.5" may be more manageable. I was comparing the .44 AMP, .45 Win Mag, and 308x1.5 cartridges. At approximately the same size of cut-down .30-06 brass, they all produce about the same case capacity of ~ 30 to 35 grains H20. No surprise there. I have yet to measure a 1.5" case that has not been necked down.
Here's the rub - he is considering not an AK conversion, but possibly a Ruger Mini-30 conversion. He wants more pretty wood!
I suggested a Mini-30 since it should have the same pressure tolerance as an AK - CUP pressure around the mid- to upper- 30k range. I'm not sure what other "pretty wood" autoloading rifles are available.
So what do you guys think? I know derivatives of the .44?? cartridge were hinted at - he may be doing the first .41. I could find no other .41 equivalent cartridges in that size. Are there others? I'd hate to reinvent the wheel.
Dad, what is the size of bullets you're looking at right now? I know that swaging kit can do .41 so I may be able to make up a big batch of them later this Winter.