I just recently purchased a SBE II. And from what I read on here and other forums I figured I could get four shells in the magazine (2 3/4"). I took the plug out that was in the magazine, so thats not the issue. I could get three shells in the magazine, and the fourth one would get to the brass (on a high brass) and then stop, like it was at the end.
After i removed the plug, I reinserted the spring, put the o ring seal (whatever its called) back in to hold the spring. And then the end cap on. So should i be able to get four shells in the magazine on a stock gun, or is it impossible.