Thread: FPS Limit
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Old September 21st, 2010, 09:53   #5
L473ncy's Avatar
Join Date: Oct 2004
Location: 11-30-24-1W5
Indoor CQB can go as low as 330 FPS sometimes (basically 1 Joule). Outdoor, the generally agreed upon limit is 400 but may be higher or lower depending on host and field. Ie. a smaller outdoor field might be 360 or 380 while a larger outdoor field might have a limit of 420 or 425 (with specified Minimum Engagement Distances).

Aim for a speed of 360-380 on .20's. So an "M110" or "M120" is around the power rating of the spring you'll want to use. I was told once that the "M" rating is basically the speed you'll be shooting at in meters per second but I can't confirm this (however it does make sense if you do the m/s to fps calculations yourself).
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