For my '51 Navies, '60Armies and '58 Remijngtons the ASM & Uberti have taken the same nipple sizes. I don't know for sure on the Dragoons & Walkers but the other guns had the same nipple sizes.
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)