Thanks for posting the groups, David. Looks as if it's doing just fine. I had thought earlier of getting the Hastings barrel, but was concerned about the 'fast' 35" twist. Maybe I shouldn't have been concerned?
: Since you are in Australia, where I assume most of the Hodgdon powders are made, can you get the ADI equivelent of 'Longshot', shotgun powder? This one is listed in the data for pushing 1-1/4 ounce loads of shot out at almost 1,600fps. This data should be useable in the 12 bore for round ball loads as well wiht virtually identical results. BTW, that 1,600fps is 50fps faster than the heavy 12 bor black powder load of 7 drams (191gr.) and the smokeless load will have 1/2 the recoil.
: BTW- if you have a friend in the States, they can buy anthing you need and send it along, as far as I know. I've bought scopes from the States, that way while it is illegal for any 'store' there to sell me one.