Well, as long as I manually put the rounds into the chamber, it goes bang. If I try to use the magazine, it goes click the first time, but if I re-cock the bolt without feeding a round in, then it goes bang. Trying to feed a round in from the magazine is not easy like my working 541S. I’m thinking there is something about the extractors not letting the cartridge slide into position as it should be. I got a bolt yesterday from a gentleman on this board, so , I am going to try that bolt in my rifle tomorrow. I’ve contacted Brian Voelker, and he is a very gracious and helpful man. I have to get some of my measuring tools out of my old mechanic tool box, and try to tune this thing in. With the bolt closed, a feeler gauge measuring clear of the extractors should have less than two thousandths clearance. we getting there, I hope. If the new bolt does not fit my rifle with the correct clearance, then the extractors and firing pin are probably shaped correctly, so I will take those parts and put them into my bolt. Brian Voelker said new parts have to be shaped and de-burred for the 541S to function properly. The firing pin and the extractors clearance and shape has to be adjusted. I really don’t know how to thank pabrousseau for helping me to get this old rifle going! I’ll have to pay attention to this board and pay something forward to help . Great people on this board ! I also strongly recommend Brian Voelker………he will take time to talk to you, and help solve problems over the phone. He does not rush his conversations .