Range Report Velocity change with temperature

[CaptainH]

I have recently installed the Strelok ballistics program on my Android phone. One of the questions asked in the set up is - "How many percent bullet speed will change at change temperature on 15 degrees" Are there some rules of thumb on this issue considering most shooting done in 40- 90 degree temps? Thanks

 

[OutlawTen5]

Re: Velocity change with temperature

PM and email sent

 

[desertHK]

Re: Velocity change with temperature

Best way to accurately determine that is to chrono your load at various temperatures. From that you can get an accurate change in fps per degree.

 

[Bevan]

Re: Velocity change with temperature

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: OutlawTen5</div><div class="ubbcode-body">PM and email sent </div></div>

that's helpful to everyone else reading the thread

 

[kraigWY]

Re: Velocity change with temperature

A rule of thumb:

At 300 yards a 20 degree temp change will change the impact 1 moa

At 600 yards a 15 degree temp change will change the impact 1 moa

At 1000 yards a 10 degree temp change will change the impact 1 moa.

 

[kombayotch]

Re: Velocity change with temperature

Just test your ammo and put in the real number... takes about 15 min. to do.
http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2763653#Post2763653

 

[Greg Langelius *]

Re: Velocity change with temperature

Some sources. You really can submit a question to the cloud...

 

[gstaylorg]

Re: Velocity change with temperature

Here is some further reading on the topic if your interested:


http://www.shootingsoftware.com/ftp/Pressure%20Factors.pdf

 

[Unsichtbar]

Re: Velocity change with temperature



Further reading of Denton Bramwell part 2 Powders, primers and pressure

www.snipershide.com/UserFiles/Image/articles/powder_primer_temp_experiment_2.pdf

 

[CaptainH]

Re: Velocity change with temperature

Thanks guys, some good information