I read an article that suggested 'fouled' barrels have superior accuracy than clean ones. The author said his first shot from a clean barrel would be anywhere in a 12" circle at 100 yards, while 'fouled', the same gun shot 1" groups from the get-go. It wasn't clear from the article (well, maybe it was to an experienced black powder shooter, but I'm new) what kind of powder he was using. It read like loose.

I guess I have two questions. First, do you guys concur? I know some suggest popping a cap or primer before loading. Second, if it is true for loose powder, does the same issue apply to Pyrodex pellets?