OK so I have just bought my self a spring zeta labs nagant second hand at a good price, its firing at 360 fps but want to get it above 450 fps, How should I go about doing this, what will I need, is easy to do etc.
Any help would be great
fhouse
It takes an AEG spring I think, just be careful about the sear, it may wear out with the higher stress level.
I don't think you'll have any issue with the sear at all. It's made of steel and a lot better designed than most I have seen. Completely different from either the VSR or APS2.
They're easy enough to strip and work on I found. I've even partially stripped in the field. If you have experience with stripping other bolt action rifles you'll work it out no problem.
I can't imagine why you'd want to increase the fps though. Think battle rifle, not sniper rifle... 
