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A 180% Spring would be in the low-mid 400's. Most people need around a 250-300% spring to achieve around 5-550 FPS.

Also note, for example, a 150% spring and an M/SP150 percent spring are 2 entirely different things. A 150% spring will sit you around ~380 FPS, while an M150/SP150 will sit you around ~525 FPS, which is likely where your mixed data is coming from.

sticks13 said:
Hey guys I need you help once again.

I have a PDI Exy 180 spring that I got with my TM VSR. Ive looked on a bunch of sites but I cannot find the ezy spring. Its a regular pistch spring.

I'm wondering what the estimated FPS is for the spring. On a couple of different sites I found two different PDI springs; I couldent find a 180 but I found a bunch of 200 springs. The problem is some of them stated they ran in the 500's and some stated they ran in the low to mid 400's(in FPS).

thanks guys

sticks
 
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