I have been curious as to why the #11 caps I bought for my Traditions seem to be far too loose. They just flop around on the nipple. I tried CCI and Remington both with the same results. I ordered a different #11 nipple and it came today. Caps fit snug. Nipple is visibly larger in diameter then my 'stock' nipple. Is there not such a thing as a #10 nipple? If so then that must be what came on my rifle. Since I don't know how old my Traditions is, I guess it's possible that they used to put such nipples on them at one time. Why would there be a need for a smaller nipple and cap than a #11?