I've run a bunch 45cal suppressed. So no sabot to deal with. I ended up needing to remove every shot (even though I had a funnel to load through). At least back in Iowa with high humidity, if I didn't remove every time bore would condensate and soak my powder. That was all smokeless, so no need to worry about fouling. I would think it would be a mess with BH209. Easier to just wear ear plugs IMO.