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lonewolf172

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Are there any ML experts here who knows what the measurements of the lands and grooves are for the .50 cal Investarm Gemmer Hawken are. I know the bore is probably .500-.501 but you need the other 2 figures to know what's best size round ball and patch to use.
 
get some .490 and .495 and the patch material you want to use and experiment, go from them
 
Hey Lonewolf, Texsam1949 is spot on with his advice. Muzzleloader barrels can and do vary so experimenting with your rifle is the best way. Besides....it's the most fun!
 

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