Pioneer Beartooth Magnum

Hey is there anyone out there that owns or owned a beartooth magnum .50 cal. muzzleloader from B.P.I.? I'd like to know what would be the ideal bullet and type of powder works best in this gun. I bought a replacement barrel from b.p.i. and it's a 1:28 twist. I've had about 20 rounds fired through it and cleans really easy. I'm a rookie at this and any wisdom would be greatly appreciated.

Barnes 250mz 90 gr loose 777, 209 primer, favorite load from my 1 in 28" twist barrels. 240-250 grain bullets should work well.

thanks guys. Going to stock up on ammo for this season.