Months ago a coworker gifted me a project, a rather ambitious project mind you. I received a box full of gun parts apparently they were all the parts to the Remington, they were rusty and pitted the barrel was corroded but still had some rifling. I accepted the quest to try and get it back together because hey, a free gun is a free gun. Apparently the reason it was in pieces was because it wasn't going bang anymore and so he took the liberty decades ago to take it apart and then lost interest and left it in a drawer in the garage. Que to now and I just got it back from the gunsmith since I can't do bluing and I'm a novice at fixing guns at best, I also don't work there anymore so I won't see that guy for a long while.
The problem is something both the smith and I aren't able to figure, and that's that it won't pump easily now, the smith thinks it's because of the pitting not being a smooth surface and is creating a bind somewhere that we can't see. You can get it to pump either grabbing the foregrip and gently tapping the butt on the ground to get it to shake and fall down. The other way is to kinda grab it while pushing up towards the barrel and pulling back. I took it apart and I'm not sure whats wrong nothing is marred everything is oiled and the pitting doesn't really exist inside (thank god). I'm curious if anyone has experience with this and can help a person out. I can provide Pics of the completed gun if needed, but I didn't take pictures while I was inside I was frustrated trying to line everything up.