JamesAirsofterAgent
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- Aug 14, 2014
- 507
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Just fitted a barrel around half the length (but only a 6.20 WBB instead of a 6.23 WBB) and although am still getting 400fps/1.49j on 0.2g BBs I am still losing roughly 3.5ms/11.5fps on 0.32g BBs (308fps). It seems to be shooting well though and due to the shorter inner barrel I have once again fitted the shorter outer barrel but added the mock silencer to cover the end of it:I couldn't say tbf. I believe the effect of undervoluming is that after the compressed air has all expanded if the BB has not left the barrel the air behind the BB cannot expand further and there is a minor vacum as a result. In a WBB more air can escape ahead of the BB than normal, and with heaiver BBs accellerating slower there is more time for more air to escape ahead, in theory exaccerbating this.
Call me a sceptic as to whether the relevant values are high enough to make a measurable difference though.
Its easy to test, as you said, get another shorter barrel with the same bore and try chronoing the different weights.![]()

My very first (of many hopefully) airsoft gun
Well worth the wait, dads had some fun with it and is talking about getting himself one. So I really hope this is the start.
Thanks to everyone who put up with my plinker threads lol
how do you keep your bench so clean and tidy? i cant even work on mine due to the mess
Nice!Andy M4 M203 GBB.JPGMarui M4A1 MWS with M203 (KA Type111 Quadrant sight kit with Shield Optics).![]()
You don't want to see the mess it's in now! I clean it every so often, then it stays clean only until the next game dayhow do you keep your bench so clean and tidy? i cant even work on mine due to the mess
Very Nice, The best look for an M92My new side arm, just arrived (gas)![]()
To be seen if the camera will run properly on it as it has a bit of a kick lol. It is sort of a spare camera now I have the Runcam2's so made sense to use it on somethingReally like the T1 and camera setup.