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Load Development in near 0 deg F weather

Nope, but I tippy toe outta my nice warm house out to my shooting bench, which was moved onto the front porch for the winter. So far only shot at about -12 this winter but it is supposed to be -21 Monday morning and I am trying to gather as much data on some surplus powder as I can.
 
Only been down to 10 degrees this winter. But I actually shoot outside and give the rifle and ammo an hour to stabilize at the ambient temperature so I can test the stability of the load. I’ll test around 0 +/- 5 degrees tomorrow or Tuesday. Fun fact: from about 45 down to 10, the muzzle velocity increase from inverse temperature sensitivity of AR-Comp with 2 different loads using 2 different bullets and 2 different primer types out of 2 different .308s almost exactly offsets the increased drop due to air density from temperature out to 700 yards or so. We’re talking elevation within 1/2” across that temperature range.
 
Nope, but I tippy toe outta my nice warm house out to my shooting bench, which was moved onto the front porch for the winter. So far only shot at about -12 this winter but it is supposed to be -21 Monday morning and I am trying to gather as much data on some surplus powder as I can.

Thanks @cav has been and @Disconnekt .
Similar to what I've done, been using a portable prairie dog shooting type bench (pretty stable but not like a heavy wooden or concrete job) and leave it in the garage til I have time to shoot. Move it out right in front of the house and have access to 1000yds if need be.
 
If I had a garage or a portable bench, I’d do that too... but I just sweep as much snow as I can off the picnic table, go for it, and change my soggy, icy pants when I get back inside. :)
 
Just set 3 of my 6.5 creeds loaded with rl 16 outside today. Let them sit out of the sun for a about 3 hours. 37°F OAT. Chronoed 2824 avg.

Ran 3 over the chrono that were 72°F. 2825 avg.

I used to hurry up and shoot when I was getting chrono numbers in the cold but I guess I can take my time now
 
Just set 3 of my 6.5 creeds loaded with rl 16 outside today. Let them sit out of the sun for a about 3 hours. 37°F OAT. Chronoed 2824 avg.

Ran 3 over the chrono that were 72°F. 2825 avg.

I used to hurry up and shoot when I was getting chrono numbers in the cold but I guess I can take my time now

@DrainTheSwamp2017 Glad to hear that. That's the reason I picked RL16 to begin with.

Thanks for the reply
 
If I had a garage or a portable bench, I’d do that too... but I just sweep as much snow as I can off the picnic table, go for it, and change my soggy, icy pants when I get back inside. :)


Is that you Maser? LOL :p

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