Sorry, I forgot to mention that the previous owner did have a chamber cast made and that the dimensions, save for chamber length, were generous at the base for the 444 Marlin. I've fired the rifle using 265 gr gas check bullets and mild charges of 4198. Results are fairly good. The cases don't expand at the base with these loads. I think neck sizing will suffice.

Last edited by rocky mtn bill; 05/30/23 01:45 PM.
Bill Ferguson