Re: 32" 54 cal GM Barrel w/ 15/16" flats & 1:70 twist
I replaced my factory T\C 50 cal with a GM 50 cal barrel. Best thing I could have ever done. The GM 1-70 twist is oh so very accurate...and consistently accurate. I shoot a conical but a PRB will be just as accurate. I use FF powder and 100gr. and I have shot a pile of doe and a few bucks with it. I'm sure you will be very happy with the barrel. The best way to know what will work is to go to the range and try different loads. Then, you will know.