I have an interesting phenomena with my .40 caliber Ruger PCC. From the day I took it out of the box, it has not run well for me. Numerous FTF issues and stovepipes, with various ammunition. I finally switched to my own hand loaded ammo to cut down on the cost while I am trying to fix the problems. These same hand loads run fine in my SR40 pistol.
I stumbled on MCARBO’s site and have now replaced every internal component that they offer except one, hoping to fix the issues. I have installed the aluminum trigger, trigger spring kit, SS trigger pin group, SS recoil spring retainer, exact edge extractor, extra power recoil spring, A2 tool steel bolt pins and extractor pin. I just ordered the shock buffer and will install it as soon as it arrives.
None of the problems seemed to go away, but I came across a thread on Ruger Firearms forum where someone had bent the ejector to keep the rounds from touching it and claimed it fixed all of his problems. Being the experimental type of guy I am, I went ahead and tried to replicate what he did.
Now, here is where it gets interesting. After bending the ejector, the rifle runs fine, no stovepipes and no FTF’s EXCEPT the very last round in the magazine. Consistently. I tried different magazines, same result. ALWAYS the last round would fail to feed.
On a hunch, the last time I went to the range, I tried slowing down my rate of fire. Now, I was not pulling the trigger as fast as I could before, but I was not really pausing at all between shots. Interestingly, when I started pausing before the next to last shot, the last round will feed into the chamber. Am I just outrunning the rifle? I’ve seen guys on YouTube running their PCC’s MUCH faster than I was.
I would be curious to know your thoughts or if anyone else has experienced anything similar.