Re: Shooter program
The main purpose for powder temp is this:
Let's say you zero your rifle at home (and we'll say for for an extreme example it's ) in Florida. You zero your tack driver and work out your dope all the way out to 1000yards. it's a nice 55 degrees at your range in Florida.
Your set. You fly out to the high elevation hunting grounds of the Rockies for your guided hunt. It's a frigid 4 degrees. You see the trophy of a life time some 800 yards out.
You dial your dope break the shot and your heart sinks as you see the impact is quite low and the animal runs away unscathed.
ALL powders are at least a little effected by temperature. It is enough to make for a clean miss at long distance...
Powder temp features of ballistic programs help compensate for this.
And similar to what has already been said... Snipers in desert regions can be shooting in a target rich environment rapidly and making solid hits. Then they run out of ammo and grab some from (the deep shade of their) pack and resume shooting. They begin hitting low because the ammo in the pack was 20 degrees cooler that had been sitting in the hot sun.
-Tres @ WildernessMeans.com
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