I am loading 12.2grs of AA#9 under a 200gr badman hard cast, in new Starline brass. They are running right about 1200fps.
Accuracy is excellent in my G20sf and after market KKM stock length bbl.
Start at 11.6grs and work up using a chronograph.
What load manual did you get that from?
Various readings on websites, as to starting point, than just worked it up in my gun, watching for pressure signs, ie smiles on brass, flattening of primers, going to keep reloading the same 30 pieces of brass, so I can see how long they will last
