I haven't had very good luck with the CCI four wing caps in my Springfield 1861 and that has a much simpler flash channel than a Sharps. Graf's and sons has Schuetzen caps available right now and they're doing free shipping with no hazmat fee. I've heard Schuetzen caps are better so I'd recommend taking advantage of that deal while you can.I wasn't thinking of using the #11's on the Sharps. The CCI's I have a 4 wing so I'm guessing no good?-- that sux!!