I have to agree with LB - the best smoothbore shooting I've ever seen, happens at Hefley Creek Rendezvous. These guys and gals are good because teh smoothbore is ALL they shoot and they shoot often - must!
: The larger the bore, the heavier the charge is needed, of course. Most smoothbores are too light to shoot many shots of heavy loads, just as LB indicated.
: Although some people acknoledge they get the best results with heavy charges, I believe most smoothbores probably shoot their best with reduced chargs, compared to same calibre rifles. This was true in the late 1700's and early 1800's with the US military muskets. In testing, it is recorded they increased hits at close range by 3 times over the service charge, by reducing the charge to 1/3 normal. Since that testing was prior to 1820, that would put the reduced charge at 55gr. instead of 165gr. Of course, 55gr. probably wouldn't shoot through the horse and kill the ahh, First Nations Person on the far side, as would the normal 165gr. charge. I can't imagine shooting a 1777 (Charleville copy) with that charge - imagine the nerve and tissue damage to the cheek bone?. Those guns were horrible.