Wayne,
Here is a pic of the 4 projectiles I currently use.
L-R, a .732" round ball, 570 grains Jeff Tanner mould, a CBE HP Paradox style weighing 670 grains, same bullet but made as a solid weighs 730 grains, an NEI mould I just got this one weighs 845 grains. All weights are using the lead mix I use, similar to Lyman #2.
Best groups have been with the solid CBE at present, had a few groups going around 3 inches at 100 m. It averages closer to 4 inches in reality. The round balls will easily group into 2 inches or less at 50m.
Haven't done much with the NEI bullet yet, but the 6 I fired last weekend were in 2.5 inches at 50m, no load development on them yet.

Regards,
David.