Range Report humidity help

[anthonylapoint]

I can't seem to get jbm to help me but honestly, I'm not that good with it.

If my zero is 2725fps with .243 107 smk bc of .527. Weather standard 59f and 29.92 altitude like 100 feet asl and humidity 30%.

How much velocity would I gain if it changed to 93%?

 

[Lowlight]

Next to nothing,

humidity barely matters, like a 1/2 a tenth of a mil at distance.

You can set humidity in the middle an ignore it.

 

[damoncali]

At 1000 yards, you'll be about 5 fps faster with the extra humidity if I didn't bungle the inputs, which equates to about an inch of elevation. Like Lowlight says, it doesn't matter much.

 

[anthonylapoint]

No shit. Thought I would get more out of it then that

 

[damoncali]

Pressure and temperature can make a significant difference, but humidity has pretty small impact on air density, it turns out. I just guess or leave it at 50%.