Like most people, I've had reason to use a grease gun for various things over the years. I had no need for one for many years but now I do. I've bought two so far and both of them are junk. I never had problems with grease guns in the past. But these today stick on the zirc fitting and you have to pry them off.
Loosen the tip. You can adjust them so they aren't too tight or too lose on a zerk.
