Greetings
I recently purchased a Knight Wolverine 26" SS with the 209 ignitiontopped witha Redfield 3x9 andplan on bagging a couple whitetails this season with my new toy. I have not fired it yet, but plan on shooting some(40) 405gr PowerBelts loaded with (2) 50gr 777 pellets to dust it off and find the paper. I also purchased a quantity of Buffalo SSB 325gr HPBT SPTZ which I hope hunt with. At issue is this: I havea pound of777 fffg powder and would like to use it if possible during hunting season, however I've read that such a fine grain powder might not be a wise choice with the heavier .50 bore sabots. Any input/recommendations would be greatly appreciated

I can't imagine taking a shot over 150yds in the territory I hunt.