Thought I'd pass this on. I was having problems with my groups at long range with my Air Arms TX200 HC .22 because the front stock screws keep coming loose. After doing a whole lot of research I ordered a tube of Vibra-Tite Thread Locker and put it on all 4 stock to barrel screws. WOW! It tightened the groups right down to a single nickle sized hole at 55 Yards. And that's with Crosman Domed Pellets for $8.00 a tin of 500! The tread locker was easy to use. You put it on and let it cure for half an hour before reinstalling them. They say advertise you can remove the screws and reinstall again up to 5 times without reapplying the Vibra-Tite. SO if you are having problems with your springer give it a try. It worked for me. Many gunsmiths use the same trick on firearms to tighten up groups.