I have their TOW stainless nipples in a couple of my guns and they also take the Rem#10 just fine. On occasion I have had to shim the SS nipples out a few thou as they can be shorter than the Ampco ones which are longer and the hammer face will hit the Ampcos. It is easy to shim nipples. Email me if you need a quick course. I can't remember if it was the Uncle Mike's or the TOW nips that were shorter. The SS nips have smaller flash holes than stock nipples but not as small as the AMPCO. I think they are the best replacements. Uncle Mike's/Butler Creek no longer make their nipples which are quite good and they are in some of my guns too. If a gun functions well with the stock nipples using #10 Remington caps I leave them in.
With over 15 perCUSSIN' revolvers, I've been called the Imelda Marcos of cap & ball.
SASS#3302 (Life), SASS Regulator, NRA (Life), DGB#129
Wolverton Mtn. Peacekeepers (WA), former Orygun Cowboy (Ranger, Posse from Hell)