What do you know about wax slugs?
So I recently learned about a technique for folks who load their own shells. You put everything in except the lead and have your shell ready. Then you mix your lead with some sort of melted wax (on youtube I've seen candles and crayons) and pour the mix into the shotgun shell. The wax keeps all the shot together in flight as a single projectile, but on impact it breaks up pretty quickly.
Is this really a more effective load than the shot used would be on its own?
I've also seen folks use hot glue instead of wax which is supposed to be a little bit harder, anyone know about that?
Your 9mm could, and in all likelihood will expand. But my .45 will never get any smaller.