I have a late (read South Carolina FN) Model 70 Winchester that I really like. Its been to South Africa on a plains game hunt, and I feel very comfortable with it. I plan on taking it for Cape Buffalo in a year or so. I've been practicing getting off a quick 2nd shot using A-zoom snap caps. Recently, I've been experiencing 2 rounds being ejected at the same time. It doesn't happened all the time, but is disconcerting when thinking about DG. The caps are starting to look a bit battered, and I plan to replace them soon. The issue seems to be happening with increasing frequency. My question is...could these caps be causing the problem...or should I have a good gunsmith check out rifle. Has anyone experienced this problem?