I am working on a rolling block No. 1 action which I had planned chambering in 45 120 and for long range BPCR shooting. I confess that a big factor in this choice is the look of those 3 1/4" Basic shells on a cartridge belt. I also am familiar with the fact that it is not known to be the best choice for accuracy but had thought to load down to achieve best accuracy. Do you think I should just scrap the whole 3 1/4" idea in favor of the 45 100 or can I make this work?