Use to, especially with Winchester brand primers. If the primer sticks after firing it just lift the bolt handle and close it to recock the striker. Then dry fire it on the spent primer. You should then be able to open the bolt, turn the gun to the side and the spent primer should fall right out. Some 209 primer heads seem to be a little "softer" then others and deform slightly in the bolt especially with some powder loadings. Try the dry fire trick first. Good luck....
ES