So I not so recently purchased a .460 Rowland conversion from the Rowland company, and have still yet to receive it, but wanted to work up some cast lead loads in the meantime so I'm ready to shoot when it gets here. Mostly I'll be using it for fun but I'm also taking a trip into bear country in the fall so I wanted some loads that will work for that too. I have some new starline brass and got a package of lightning 250 gr RNFP cast bullets. But due to the current shortage on just about everything I can't find any powder for sale. Power pistol seems to be preferred so I'll get some of that when I can but for now I have a solid supply of unique and tite group. Does anyone have any loads for the .460 using either of those powders for that bullet weight? Any help would be appreciated so thanks in advance.