What is the speed of sound in fps?


Well-Known Member
Mar 17, 2002
What would the diffrence in the speed of sound be from 800 ft to 6000 ft above see level

Steve Shelp

Well-Known Member
May 3, 2001
Crow Mag,
At sealevel using STP I beleive it's 1120.??fps.
For 800ft it should be 1115.28 fps and at 6000ft altitude it should be around 1093.27 fps if I calculated it correctly. Now under actual firing conditions that most definitely will change because of different variables used above. It's not a constant.


Trending threads

Nightforce has great tracking capabilities, they are rugged, a bunch of elevation, holds zero forever, and reticles are designed for long range shooting. So if you are looking to shoot long distances constantly, then you need a scope that can take the abuse. -- gilmillan1

Culture Of Excellence At Nightforce Optics
By Len Backus

A high level of quality both in production and in service. Read More

Nightforce is such a solid combo of reticle, available elevation, glass that is good enough to shoot at the longest range you can dial. Nightforce has bullet proof construction that can handle the incidental horse rolling or some other rodeo action. -- bigngreen

Nightforce ATACR Scope Review
By Jeff Brozovich

The new NightForce ATACR is for sure a top choice for any long range shooter. Read More

The total package. Nightforce is the best I have used as far as turret feel and solid detents. I have never had one that didn't track right on and always return to zero. Nightforce NXS is the best value for everything I need. -- Broz

Nightforce Velocity 1000 Reticle Review
By Scott Shreve

I think Nightforce knocked it outta the park with this reticle! Read More