Barbarosa
Don't worry about the smaller rim as it is a non issue. I got mine and it had feeding problems, no matter what OAL I loaded ammo to. Also the trigger pull was 20+ lbs. I corrected the trigger pull myself but sent the rifle back to Cimarron for repair. They had it about 3 months but when I got it back it 'seems; to function correctly now. Weather has been too crappy to get out on days I could have. I can say that dummy rds. loaded to 1.600"  now function perfectly thru it.
Macon Due 29445

Yeah, that's why I quoted him, so he might get an email, depending on his settings.  Nobody responded to his other posts about needing some Lightning rifle parts, either.  Oh well.

Just one note on actual S&W 1917 revolvers. Their barrels have rifling set up for FMJ bullets. Unless you use a very hard cast bullet, it will not play well with non-jacketed bullets.

Well….

Ole’ wheelgunner hasn’t been here for more than a bit….

Date Registered: September 10, 2022, 08:21:16 PM
 
Last Active: October 31, 2022, 12:36:10 PM

Yhs
Prof mumbles

I would hope the first things you'd were to have the Chamber re-cut 20 a correct 2 3/4 and have the forcing cone extended.