I have a Rem. Nylon 66 .22 that has been giving me alot of trouble lately. It has been shooting OK with CCI Mini Mags and other high Velocity Ammo but when i try something like REm. Thunderbolts or American Eagle it wont eject.  I have also been having problems with my Ruger 22\45. I should say that I have been shooting alot of lower grade ammo in them lately.

1. Is my problem due to the fact that the ammo doesn't have the power to cycle the action/ or is the gun just that gummed up.
2. What is the best product availible to remove leading.
3. Any other advice.
Thanks

I'll go with number 1.

Have you cleaned the rifle?

Contrary to popular belief, .22's DO need to be cleaned.