I have one of the barrels that I bought from a member here. It is one of the problem children. Frequent failures to fire using Rem factory loads, and my full length sized reloads also. With the barrel off the frame, I found that the cartridge is recessed 0.017 in. from the end of the barrel. Looks like the chamber is cut too deep. I took a box of Rem. factory loads, pulled bullets, ran a 0.375 dia sizer thru the cases, and resized partially in a Whelen die. This formed a false shoulder that seated the case head flush with the chamber. All 20 went bang, no issues or light primer strikes. Accuracy was not the best I've ever seen, but was acceptable. I will reload these cases with just a kiss on the shoulder from the sizer die. When I can get it to fire dependably, which I am sure this will accomplish, I can start work on accuracy loads. It's a pain to go thru all this, but after the brass is fire formed to the chamber, it won't be any worse to load than any other caliber. I love the caliber, love my handi rifles, prefer them to bolts. Just ornery and different, I guess.