I ran some over the screens from my FN SA-22 yesterday (Albuquerque City Range, 5950'>sea level, c. 60°F, c. 20% humidity), along with some other "fast" ammo and some regular stuff. Velocitors gave good velocities and just-fine-but-not-outstanding accuracy from this rifle.
CCI Velocitor 40-gr PHP: Mean 1400/Extreme Spread 40.79/Standard Deviation 22.53
Federal AutoMatch 40-gr RNL: M 1161/S 51.15/D 25.51
CCI Mini-Mag 40-gr PRN "Target": M 1207/S 30.75/D13.89
CCI Stingers 32-gr PHP: M 1518/S 9.92/D 5.00 (one hole at a short ten yards, and I wasn't killing myself to be accurate - I was trying to get rounds through the gun in the relay period without hitting my screens)
CCI Copper 21-gr truncated cone solids: M 1632/S 8.37/D 6.40 (
not one hole)