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Old 02-28-2018, 11:46 PM   #8 (permalink)
EL17E 76
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Join Date: May 2011
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from the other thread on the same thing...

11 joules - 425-ish FPS @ 1.25 gram weight .50paint - now it does say "up to" so possibly this one is adjustable? one would hope - doubt it though...seeing as the "latest" MCS "walther" is not adjustable without a teardown - and their "solution" was to tell their buyers - well since it isn't at field limits just shoot off the first clip then the FPS will lower to field legal limits....

yes, yes I know - a 3.3 gram FSr/.68paint @ 300FPS is 13.J - but unfortunately - until the US gets with the times and switches to both a metric system and updates their ASTM guidelines to go by Joules we are stuck with the FPS limits we have ...

Originally Posted by CCMachinist View Post
When I started doing shells for my revolvers the apparent thing i noticed was the hole size in the cartridge controlled the velocity of my paint.
TL;DR hole size controls how fast balls get spent
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