Quote:
Originally Posted by Crunchmeister
That seems a bit of a large gap. I tested my pistols using both .20 and .25. The one I remember best was my M9 that fires between 310 and 320 ,with, 2, and I was getting 290-ish with .25s, hence my estimate about the .25s about. I could be mistaken though. I'll check it out again when I have time to confirm.
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Gas guns are WAY different when it comes to FPS differences between weights. They aren't affected as much. For example, my P229 fires 270 on .2's, and 260-ish on .28's. In an AEG, the system is steady, there is always the same amount of air pushing the BB. In a gas pistol, with heavier weights the BB in in the barrel for a longer time, allowing for more gas expansion and more energy transferred to the BB. Hence why I only shoot 10 FPS difference between .2's and .28's on my 229. Make sense?