Spring Velocity Guide

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Spring Velocity Guide

Postby Mobius » Sat Oct 20, 2007 10:35 pm

All springs tested were in Brand new condition. Results are based on controlled indoor conditions at roughly 70 degrees F. The results are +/- 10 f.p.s. Please use this as a point of reference not as a true point of fact. The velocity in your personal gun may vary depending on age of your gun and internal parts.

Systema:

1 Joule - 310 f.p.s.

M100 - 365 f.p.s.

M120 - 395 f.p.s.

M120S - 440 f.p.s.

Prometheus:

MS90SP - 315 f.p.s.

MS100SP - 340 f.p.s.

MS110SP - 390 f.p.s.

MS120SP - 440 f.p.s.

Guarder:

SP85 - 313 f.p.s.

SP90 - 335 f.p.s.

SP100 - 395 f.p.s.

SP110 - 425 f.p.s.

SP120 - 440 f.p.s.

KM:

90M - 318 f.p.s.

100M - 343 f.p.s.

120M - 396 f.p.s.

130M - 422 f.p.s.

140M - 450 f.p.s.

PDI:

120% - 330 f.p.s.

130% - 370 f.p.s.

140% - 380 f.p.s.

150% - 405 f.p.s.

170% - 440 f.p.s.

Angel:

120% (85-95m/s) - 318f.p.s.

130% (95-110m/s) - 343 f.p.s.

140% (110-125m/s) - 430 f.p.s.

Top Power:

150% - 385 f.p.s.

170% - 415 f.p.s.

190% - 455 f.p.s.

Special thanks to http://www.poweredgehawaii.com/ for their spring test info
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Postby Raging Hormann » Wed Dec 12, 2007 4:14 pm

21st Century Airsoft has another spring guide that conflicts with this one (it is also only a guideline)
Here: http://21stcenturyairsoft.com/springguide.php
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Postby MunkyMo » Thu Dec 13, 2007 11:08 am

Prometheus
MS110SP - 390 f.p.s.
MS120SP - 440 f.p.s.

These are incorrect. MS110 Prometheus spring will get you about 385 FPS with a tightbore and good compression. MS120 Prometheus Spring will get you 415 FPS with a tightbore and good compression. Prometheus springs are all I use and I have never had a Ms120 shoot higher then 415 FPS. And my AEG only has a 1 FPS varience so I know my compression is right.

Edited to add:

Actually most of this list is wrong. Guarder MS120's do not shoot 440 FPS either. Most manufacturers a M120 spring will give you just under or just over 400 FPS. Prometheus M120's shoot harder then any other manufacturer of M120s I have ever used (I have installed and tested most brands) and they only give you 415 FPS.
Last edited by MunkyMo on Thu Dec 13, 2007 11:15 am, edited 1 time in total.
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Postby Matt » Thu Dec 13, 2007 11:13 am

You're going to knit-pick over 5 fps?
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Postby MunkyMo » Thu Dec 13, 2007 11:15 am

The MS110 is close enough I guess but I am going to nitpick over 25 FPS with the 120's.

I really would like to see how you got that spring to move at 440 FPS.

Even doing the math of 120 Meters per second it only comes to 393.700787 FPS. Can you post of a picture of the Chrony numbers from this test?
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Postby league 4 » Fri May 30, 2008 5:04 pm

Systema M85 is not listed, would it be over 300FPS at all in a stock JG?
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Postby Mobius » Fri May 30, 2008 7:15 pm

read the last line of the original post please.
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Postby pineapple » Fri Aug 08, 2008 12:33 pm

what brand or power of spring would you recomend for a stock Echo 1 M4 with out killing any of the internals?
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Postby Mobius » Fri Aug 08, 2008 1:25 pm

futureSEAL wrote:what brand or power of spring would you recomend for a stock Echo 1 M4 with out killing any of the internals?


please be more specific, are you upgrading anything else? personally I would recommend a M110 by anyone who makes them. It will up your fps a bit and still leave you room to add other enhancing upgrades.

(keep in mind this is merely an opinion)
Last edited by Mobius on Wed Dec 10, 2008 8:12 pm, edited 1 time in total.
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Postby GacktC » Wed Oct 22, 2008 4:39 am

Sir, my MP5K with SP100 only able to produce less than 320fps? Everything were stock except the spring and bushings.
Is it because the MP5K is a short barrel gun?
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Postby sirkillsollot » Wed Oct 22, 2008 8:18 am

All those numbers are with .2's right?
War does not determine who is right - only who is left. ~Bertrand Russell
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Postby CommieHunter » Wed Oct 22, 2008 8:29 am

Yes, they are.
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Postby Bourne » Wed Dec 10, 2008 6:17 pm

Anybody have a Systema m140? whats your average fps?
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Postby moky » Sat Dec 20, 2008 12:45 am

Systema M130 490fps. :)
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Postby Mars » Sat Dec 20, 2008 1:33 am

Systema M130 gives 465fps for me.
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