I have a little cva 45 cal. derringer, i read somewhere that the only bullet load i am to use is a pacthed roundball. But i have shot a bunch of blue sabots with a light 38 cal xtp bullet and it done alright.I done this before before i ever read about the bulletload. Recon that the reason not to use any other bullet except a pacthed round ball is because it will not have enough time to turn with the twist before it leaves the barrel. I have shot it with round ballsalso and got about the same pattern at 10 yards. The roundballs have a lot more kick than the sabot bullet load. That might be because the roundballs are alot heavier than the sabot round. Anyone have any id about this.