Thanks guys for all of the good info. I appreciate it. If I do this project I am going to add a recoil reducer, although with my previous 458's I usually shot what would be considered to be hot 45/70 loads. I felt that it was better to load the 458 down rather than load the 45/70 up. Based on the price of the parts for this project it sure looks like the most cost effective way to have another 458. Thanks again guys, I'll update with my progress.