longcruise
70 Cal.
Because he is doing everything else wrong!
That destroyed patch is caused by one or more Failures of his system or components. Eg., patch too thin, patch too weak, bore rough, and more. When the load is tight enough with a clean crown and a clean smooth bore and a strong material, the patch isn't going to burn up or be wrecked. FWIW, that last patch he shows off doesn't look good at all. It shows shredding right up to where the ball contacts the bore. That can indicate the patch is too small.
Here's what a tough proper fitting patch fired from a rifle with a clean crown and smooth bore looks like. Oh, and lube? I get the same results regardless of lube. Probably the same with a dry un lubed patch.
