I played with regular primed wax bullets and they worked well and were plenty fast.

with a No. 3 shot dropped in the tube. Good for a case of the near terminal giggles and able to penetrate impressively far into a dry phone book. However, do not be tempted to shoot them at a plywood backed target. Don't ask me how I know.

I have a number of cases with drilled flash holes which use wax bullets. I've tried both magnum as well as standard primers and have not seen much difference. Even went on a mouse hunt with my M-29 one evening...much to Miss Beth's incredulity. Never did score on the little bugger.

....I reamed out some .223 cases to accept 209 primers, and then I would load .22 caliber pellets into the cases and shoot them out of my .223 Contender. I forget how fast they were going, but they were moving right along, and accuracy was surprisingly good. As I recall, we got better performance with just a dab of lube in the wasp-waist of the pellet prior to loading it into the unsized .223 case.