TNHagies
Here you go...
http://muzzleloadingbullets.com/remi...rsion_kit.html
These are what I would call a 2nd generation nipple... The original nipple came with a .030 'flash hole'. These new nipples have a .032 'flash hole' and the flame channel has also been opened up to accept the flash from the hotter primers...
I forgot to mention these nipples will not work with the Reminton hammer -you need the Canadian hammer.