Graf's ships anywhere in the US, I think and their prices even with the hazmat fee, is very good.

Stay away from the reinactor powders though, as they are of poor quality for sporting arms. I'd use Swiss (expensive) Scheutzen if I could get it or simply GOEX. Here, GOEX is about all we can get so that's what we use.

Yes - there is always that extra sight. I lucked out with mine, getting decent regulation, but not with the loads I wanted.

I've heard of guys putting 175gr. of T7 in those 12 bores Kodiaks. I would not do that as it's of higher pressure than BP to start with, possibly on par with Swiss? With Swiss, about 140 would be tops for me. The pressure would be around 9,000 to 10,000 psi, I'd expect - just a guess.