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For reference the firearm in question is a Lyman Plains pistol 50-cal and the powder is Triple7 FFG.
Was able to acquire some 4-wing musket caps and thought it'd be a simple nipple swap. Bought a musket cap nipple from Track of the Wolf. The musket nipple was taller than the #11 nipple so I shortened it to get a flatter hammer strike. Tried it but no bang. Tried 3 times. Caps fired but powder never did. Swapped to a #11 nipple and then the gun worked right away.
Shortening the nipple might have shrunk the inlet hole so this evening I enlarged it slightly with a counter-sink. The musket caps' flame hole was also smaller. Maybe 0.030" compared to about 0.040" for the #11 nipple. So also drilled out the flame hole to 0.040" using a #60 drill bit. Have not tried it since making these modifications. Also could be the hammer is still not striking flat enough which is allowing flame to escape out the side.
Any advice from any successful conversions from #11 to musket cap? Where did you get your musket nipple?
Was able to acquire some 4-wing musket caps and thought it'd be a simple nipple swap. Bought a musket cap nipple from Track of the Wolf. The musket nipple was taller than the #11 nipple so I shortened it to get a flatter hammer strike. Tried it but no bang. Tried 3 times. Caps fired but powder never did. Swapped to a #11 nipple and then the gun worked right away.
Shortening the nipple might have shrunk the inlet hole so this evening I enlarged it slightly with a counter-sink. The musket caps' flame hole was also smaller. Maybe 0.030" compared to about 0.040" for the #11 nipple. So also drilled out the flame hole to 0.040" using a #60 drill bit. Have not tried it since making these modifications. Also could be the hammer is still not striking flat enough which is allowing flame to escape out the side.
Any advice from any successful conversions from #11 to musket cap? Where did you get your musket nipple?