Hi Ian, Merry Christmas and Happy New Year. Ok, I went through a batch of my loads, pulled the bullets, re-sized the shells after re-adjusting my sizer die and reloaded them. They load and unload(still with bullet) very smoothly. YAY!! Here's my problem...after FIRING these they jam up like crazy. So bad that I have to pound on my bolt handle to get them out. I don't like doing this to a $4500 gun so I'll be pulling the bullets on the rest of these rounds. These rounds Ian are loaded with 300 grn. Sierra BTHP, WLRM primers and 103 gr of Hodgdon US869 powder. Now, here's something else that is strange, with this same load in LAPUA brand brass that I bought brand new, the brass ejects fine with one coming out hard once in a blue moon. The brass that is getting stuck in my gun is all once fired brass from BARRETT. It's a mix of NORMA and LAPUA brand but they are all doing the same thing with this set up. What am I missing here? The one thing that I can noticably see that is different from the once fired stuff versus my newer Lapua stuff is the shoulder angle is steeper on my newer stuff. Makes sense but I don't understand why it's moving THAT much when fired and getting stuck. Since they get resized they go in and out just fine with a bullet seated or not. It's only after firing. Could my charge be too high for these? The max charge for this powder and bullet is 104 grains. What would you recommend? Any help is as always, greatly appreciated.