Fps vs bb weight

[JOE90]

Hi guys i tried google and the search function on here, wasnt sure how to word it so didnt bring much up.

Anyone know a correct bb weight to FPS deviation, like a chart or rule of thumb.

300fps with .25 = ..... with .2g

Only got .25s at home to use in my chrono, thanks joe

[dazz666]

Re: Fps vs bb weight

type in "fps calculator" in a famous search engine and look up the first two hits.

[JOE90]

Re: Fps vs bb weight

cheers mate, an btw you can say google on here lol

[JOE90]

Re: Fps vs bb weight

Just found the Airsoftapp for the iphone. Great peice of kit

[ste887]

Re: Fps vs bb weight

300 w/ .25 = 338 w/ .2

[MajorLandmark]

Re: Fps vs bb weight

There is a little something called physics also.

Ke = 1/2mv^2 (where Ke is kienetic energy in Joules, m is mass in Kg, and v is velocity in meters per second)

I can see why it might be a bit more effort than some people are willing to put in to do the conversion manually, but it works.

[No1_sonuk]

Re: Fps vs bb weight

The problem, MajorLandmark, is the mixture of units.

BB mass in metric and muzzle velocity in imperial make for added complications.

[MajorLandmark]

Re: Fps vs bb weight

There is also a thing called google, with which you are no doubt familiar. It includes 'google calculator' which will convert units for you, and do sums. If you rearrange that equation properly and express it correctly, google can even do the remaining math.

All you need to do is type "350 feet per second in m/s" or whatever, and it will indeed tell you.

[JOE90]

Re: Fps vs bb weight

Just get the iphone app called airsoftapp, its sweeet!

[narrowboat]

Re: Fps vs bb weight

not sure if i am aloud to post this so please remove if not,
https://www.unixguy.net/theobenssl/pages.php?pageid=5

[heroshark]

Re: Fps vs bb weight

I'd pin this ,very handy.

[JOE90]

Re: Fps vs bb weight

Lol thanks guys but as i said ive got an iphone app and its shit hot, does it all for you and a bit more thanks for the help though, mods close if you want

[heroshark]

Re: Fps vs bb weight

Lol thanks guys but as i said ive got an iphone app and its shit hot, does it all for you and a bit more thanks for the help though, mods close if you want

Ooohh get you with your iphone app ,some of us old school mofos like graphs :D .

[ElCarl]

Re: Fps vs bb weight

And the even older school hardcore guys use the KE equation and convert units

[JOE90]

Re: Fps vs bb weight

Couldnt be doing with all that to be honest