Sounds like your onto the cure for your pistol..
My J-22 was like that for a while & it's 25+ years old, It will now work darn near 100% with the Federal 550 Bulk Hps..
Bore snake is a great idea too..
Also try a .270 brush for cleaning the 22lr chamber..
Last edited by Glock 17L; 04-01-2010 at 18:33..