FPS -> Joules for common bb weights

[Nocte]

For those too lazy to use a calculator online, or if you're out at a game, I made up a chart for limits regarding muzzle velocity of our airsoft guns.

It might be a good idea to print or otherwise copy this information and keep it with your chronograph (if you have one). It may make chrono testing at events run more smoothly at events if the bolt action guys (or anyone not using .2g bbs, for that matter) to not have to switch out bbs.

For the sake of completion I listed weights that may not be used or recommended (like .12g bb weights).



AEG - 1.49J
bb mass____FPS
0.12g_______517
0.20g_______400
0.23g_______373
0.25g_______358
0.29g_______332
0.30g_______327
0.34g_______307
0.36g_______298
0.43g_______273

BOLT-ACTION - 2.81J
bb mass____FPS
0.12g_______710
0.20g_______550
0.23g_______513
0.25g_______492
0.29g_______457
0.30g_______449
0.34g_______422
0.36g_______410
0.43g_______375




ALL GUNS - 1.01J
bb mass____FPS
0.12g_______426
0.20g_______330
0.23g_______307
0.25g_______295
0.29g_______274
0.30g_______269
0.34g_______253
0.36g_______246
0.43g_______225

[DMitri]

Might as well add the formula...

v=√(2K/m)

v = Velocity (Meters/Second)
K = Kenetic Energy (Joules)
m = Mass (Kilograms)

You know, the whole, "Give a man a fish/Teach a man to fish" sort of thing...

The metric system makes it so difficult though.

[Riddick]

Nic, you should add the .43g bb to the bolt action section

[PanzerFaust]

[Sleepy]

[Nocte]

[TunnelRat]

[Nocte]

[Riddick]

[Raging Hormann]