When i first push it in the muzzle, it needs some effort. But then i could use the original ramrod, and just push it down the barrel. Absolutly dont need much effort. Shold i try load a very light load,just that much so the bullet come out of the barrel, and fire it in to a stack of old cloth. Then i could see, if the rifling marks have the right deep. What do you think? I do think Lee have a oversize version allso. I dont think, that i should do any more testshooting before i have the right powder. Some people say, that Sweiz NO 2, is better than ordinary 3 F. Regards.