I second the RA-140. HUGE difference over stock. I tried news springs and polishing the trigger components prior, and for my mileage... the RA-140 is heads and shoulders above any improvements you get out of the trigger job.
Sadly, yes. I checked all that. Cleaned it all out. Tried running wet and dry. I even changed out the firing pin with a TK firing pin. Ran wet and dry. No difference.
It's running great with the stock barrel back in. Which clearly points to something with the barrel and/or the built in...
Hello - a few months ago I installed a volquartsen barrel on my 15-22. It really lightened up the gun, and improved groups at 25 - 50 yards (I don't shoot past that at home).
Recently, though, my gun was running into a lot of Fail-to-Fires. 5 to 7 rounds out of 10 would be FTFs with ammo...