Last week, I took a buddy out shooting, and handed him my New Englander. After about 8 shots, we ran into an issue where the caps were popping, but no boom until you had went through 2-3 caps. Today I received my .54 caliber barrel for the gun, and wouldn't you know it, you have to snap 3-4 caps before the thing went off. Swapped out nipples, same thing. Switched from CCI Magnums to Remingtons, same thing. The caps are going, but there's something weird going on here. Anyone have any idea what my issue is?