Originally Posted by BrentD, Prof
What is "shot balling"? Is that a gun or a cartridge problem. I would guess the latter, whatever it is.

"Shot Balling" is when individual shot pellets clump together on discharge & create a heavier projectile which puts people down range such as beaters on driven hunts & dogs in danger.

I read somewhere that the issue w/ the Pygmie cartridges was due to the reduced amount of wadding that resulted from trying to get an equivalent amount of shot in a 2" cartridge that was normally carried in a 2 1/2".