Good job Hawkeye. I have had good luck with the 320 Maxiball (killed a bull elk-one shot) with my 209 X 50 Encore Pistol. Mine is the original factory offering with 15" barrel that was a catalog item at one time. Using Triple 7 powder I have duplicated .454 Casull ballistics with that load.

I have also used the 295 gr. Power Belt/Black Belt bullets...killed 2 bulls with 2 shots, and a third 7X7 that took 2 shots... with my rifle version 209X50.

I want to try out the new 350 gr. Hornady FPB (“Flextip Projectile Blackpowder”) but have not yet done so. It has a hollow conical base (copper not plastic as with the "Belt" bullets) that is supposed to flex for easy loading and then blow out to seal the bore upon firing.

If anyone has experience with that bullet, rifle or pistol, please post about it.