I’ve been to several hands on building classes and Bill Raby’s video series on the Tennessee, Isaac Haines, 4 Bore and now his Maryland Rifle series show techniques and give detailed instruction on almost every facet or building a muzzleloader one could think of. He is patient and explains everything he does in great detail. His 4 Bore and now Maryland Rifle series are on Rumble.com. Check them out.
They are also much more detailed and explanatory than 99% of the commercial build videos.
elkhorne