Hey guys, I found and purchased a 39-2. Came with original box and paperwork. Looks like it has not been shot to much. I love the gun and have been watching for one so when I saw it at my LGS I picked it up immediately. So I thought due to the age I would replace/change the recoil spring, hammer spring, and I also replaced the magazine spring. All original type springs except for the Wolf magazine springs at 5% more power. I took it out to the range and it is jamming approx. every 3 shots. It will partially extract the empty shell and try to feed the next cartridge and is jamming in that position. It did seem to get better towards the end of my 100 box of Winchester FMJ 115gr. target rounds. The box says approx. 1123fps for those. I checked with a gun smith and he said that I need to break in the new springs with a couple of hundred rounds. Any input/feed back will be appreciated. Do 39-2's usually run good and not jam? Thank you in advance!