Aeg spring Question
 

Just wondering if an Aeg spring will fit into a bolt action springer rifle? I want to have it shooting about the same as a strd rifle fps roughly about 395-400 but I'm not sure if it will work.

It will fit in the Mosin Nagant, the A&K SVD (may be noisy, a PSG1 length spring is recommended) and maybe some other rare rifles, but most common sniper rifles will require a specialized springs (such as VSRs, M24s, APS2s... etc.).

Ok so I'll have to find something that will work better in my vsr then.

There's plenty of springs designed specifically for the VSR10, check Laylax PSS10 series and PDI's VSR10 springs. Plenty of other manufacturers also make VSR10 springs, although some of them are not very durable and are known to lose power fast.

there are two spring sizes for the VSR10, 8mm and 11mm, make sure you get the right one.