Kinetic pullers are fun, being that you get to take out your frustration by beating on something. I used one last night to pull 10rnds of handloaded 7.5mm Swiss. Just make sure you swing it so your hitting the end WITHOUT the primer.
If your using crimped bullets (I'm asuming you are since it was for a revolver), it's going to take several good wacks before the inertia overcomes the crimp.
Also, just a word of advice, place a folded up strip of paper towel, shop towel, or even a cotton ball inside the chamber that catches the bullet. I pulled six rounds yesterday before thinking to do this, and now I have 6 bullets with deformed, flat lead noses (they're supposed to be pointed).