OK, I'm ready to jump in on this one. I bought a box of Hornady buck several years ago and have had mixed results. The buck shot has a slight band or ring around the center making each ball less than uniform; I have totally given up on trying to find a method to load with the band in the same orientation each time. So, sometimes I'll get acceptable groups with the buck, but generally groups are half again to twice as big as compared to those from the same gun with the same load as standard swaged .350 ball from Hornady.I have a Traditions Shenendoah and I've used both 000 buck and .350 round balls.
For what it is worth, the Pedersoli website has a recommended load chart. For their .36 caliber models they suggest using a .354 round ball with a .010" patch. I started shooting my Frontier model with .350 round ball and Hornady buck with a thicker pillow tick patch. She didn't start to get consistently accurate until I tried thinner patches of .10. I kept my powder loads in the range of 20-25 grains 3f with intent being to have a squirrel rifle.Sam, Its from Pedersoli.
Thanks for the response guys, ordered stuff from TOW, should find something that works.