Larry, did your 15-22 also come back with a blue bolt spring like in this post?
Yes, it did. I forgot to mention, too, that after shooting the thing awhile, I went ahead and loaded the mags to the 25 round capacity. No problems w/ that either.
I'm certainly no gunsmith, but I think there were four problems before.
1. A magazine design that would not function correctly due to position of the "on deck" round.
2. An extractor system that didn't. I know this extractor has a different angle and shape than the one I had but was made worse by #3 and #4 below.
3. Springs-the fact that they were replaced might indicate that they were too strong for the purpose. Therefore, weak ammo would not let the gun perform as expected.
4. Ammo was probably the part that made the rest look bad. The Remington Gold stuff (after closer inspection) was put together so as the bullet would actually wobble in the brass. It was easy to spin indicating a sloppy tolerance. If I've understood belt_fed correctly, escaping gases around the bullet will lessen the force of the detonation. Then two things happen-the bullet goes slower and the bolt is not sent back w/ enough force to completely eject the spent round. Subsequently, the bolt is not able to strip the fresh round off the top of the magazine.
Disclalimer:My opinions are worth exactly what you paid for them.