im not framilar with red dot powder is it a fast burning pistol powder ?

the differencs between the size of the ball and the barrel is quite small because when you think about it very little of the ball would be in contact with the barrel so it would be very eazy for it to swage to proper size. My loads are about as loud as a high velocity 22 shot. ive yet to have one stick in the barrel. someday i will chronograph to find the acutal velocity, buti think it is probly higher than a expect. ive tried my loads at 50 yards once and i put maybe 2 out of ten into a 10 inch circle.