chetmarks

Just my experiance and I can relate the same experiance that another member had (C-Daddy) In our U-Mags the .504s were to loose. We had to order the largest Dan had, a .5045s to get the best accuracy from the U-mags. We also used the shot cards underneath. 'Cascade Dad' shot a much heavier load than I did - he was using Swiss and I was using T7-3f. But both of us were confident that were getting obturation of the bullet to fit the bore. Neither one of us patched after a load.