Over the river and through the woods...
It happens every time about this same time every year. December, January, the weather gets cold and the paintballs start acting weird. The paintballs ship quick, overnight, but that's plenty of time for it to get cold and dimpled. We store it in a warm room but as soon as it's passed out it's back out in the cold.
When paintballs get cold they get brittle.
When paintballs get brittle they break in the gun.
I have two choices. I can get Wallyworld style paint that tends to be hard as marbles or I can try to get players to adjust their playing style - stop crashing into bunkers hopper first, try to be patient while the refs do everything possible to keep the guns clean and try to slow down their trigger finger (not only is this easier on the paint it also helps keep the inside of the barrel from frosting up with sharp little shards of CO2).
Marbles hurt.
Hope you have a great New Year.