Poor man's chronograph? how is it done again?

[Fox Hound]

My guarder replica chronie just took a dump and im trying to do an FPS guess here.

There was a web page showing how u can estimate the FPS with a pop can, if anyone can remember that let me know!

[Styrak]

It's on Redwolf but it's not accurate for North American pop cans.

What can it do to a can? Then we can estimate.

[Fox Hound]

ok i just finished drinking a Holsten (german) beer can, and it goes through 1 entire can, i fired at the bottom, it dents it pretty good

[dpvu]

If you have a mic and some space I suggest this technique:

http://www.airsoftpacific.com/viewto...er=asc&start=0

It's been pretty accurate for me.

[Styrak]

Originally Posted by Fox Hound

ok i just finished drinking a Holsten (german) beer can, and it goes through 1 entire can, i fired at the bottom, it dents it pretty good

Somewhere between 320 and 360-370 FPS.

Any higher and it would go through the bottom.

Any lower and it wouldn't go through both sides.

[Fox Hound]

how close should i be when firing into the cans?

[kalnaren]

Originally Posted by Fox Hound

how close should i be when firing into the cans?

1-2 inches, with the can NOT braced against anything

[Ronan]

Originally Posted by dpvu

If you have a mic and some space I suggest this technique:

http://www.airsoftpacific.com/viewto...er=asc&start=0

It's been pretty accurate for me.

Thats for average FPS speed (over X distance), not muzzle speed.

To make this work you would need to minimize the distance between the muzzle of the gun and the can... but i would think you would need a pretty good mic/software then... hmm gonna give this a try this week.

[Azathoth]

ok, so whats the FPS if i can go through both sides of a North American pop can at 5 meters

[joker060]

I wonder if someone with a chrony could do this for our cans......

[Kingsix]

How about a ballistic pendulum they use to determine muzzle velocity with them before chronographs were invented.

[kalnaren]

How about people just use a fricken chronograph.

Originally Posted by Azathoth

ok, so whats the FPS if i can go through both sides of a North American pop can at 5 meters

None. All popcan chrono stats are for 1-2 inches distance.