Spring help ... SRC T-91

[Dimitri]

Just to make sure, springs with the "M" designation are supposed to be rated to m/s based on the number?

The MED I am listing are based on BB Bastards calculator, and using .28gr BB's.

So the stock M140 is 459fps, and the gun is rated for 450fps so that makes sense. Which gives me a MED of approximately 40 feet.

So I know I want a M120 for most outdoor stuff once my gun comes in, due to the 400fps limits for most matches around here. M120 = 120 m/s = 393 m/s or so. Which is a MED of 25 feet.

Which would mean for indoor games I'd like a 350fps or less, such as at Sgt Splatters. So I can swap out the spring for a M100 which would give me approximately 328 fps. Giving me a MED of 0 feet.

Any thoughts?

Dimitri