Hmm. Maybe user error on the Bh? I use BH in 4 rifles of different names and I can go to the range with any of them and shoot 25+ shots without swabbing once or getting a change in POI.Yep, user error hasn’t gotten several folks over the years. BH209 hasn’t gotten me that many extra shots without cleaning for me to worry with using it. Even if it did, that would be a moot point for me. I start the season with a clean barrel regardless of the powder. Two shots at a time, at the max, is all I’ve ever gotten on a deer.
I do clean out the primer pocket after about 20 shots but you can do that by either removing the breech plug or not. That said I just shot with my new Lehigh breech-plug and shot 12 times and there was hardly any build up.