Jeffe, I do not mean to change the subject from the 45-120, but rather I am just trying to gain some knowledge. I have no idea if my Italian double could be safely reamed out to 45-90 or 120, but I would certainly consider it just for the bigger case. Would there be any ballistic advantage in going with the larger case with a 350gr. bullet? Since I am using Varget powder now with a pressure lavel of only 28K at 60 grains based on Varget's published data, would I be able to significantly increase velocity, or would I just get lower pressure? Also do you have any idea on the minimum chamber wall thickness at the case mouth/bullet seating area of the chamber. Would lower pressure have any effect on felt recoil? Thanks. Bob N.