A while back I bought 80 rounds of loaded PCI .44-77, primarily for the Jamison brass. I needed to shoot it and get the brass fireformed. Its shoulder is a little further back than my chamber. I went to the range this morning to shoot this and a grease groove load. The PCI ammo is mildly loaded with smokeless and RCBS 44-370 bullets. This is only the second time out with the new GM barrel, so it is still breaking in. But I was pleasantly surprised how well the PCI RCBS .44-77 shot. This is only 100 yards, but its a good start. Now I have a good set of fireformed cases for my paper patch loads.