BL-C (2) powder for 308 Win.

In my 788 and VTR, I shoot 150 Sierra or Hornady with Varget or RL15 for heavy loads, and 150 Corelokts with H-4895 for the light loads (2518fps). The 4895 loads shoot 1/2 what the Varget and RL15 do at 2750fps.
 
I no longer hunt if it is 35 degree F. or below nor do I hunt if the temperature is above 85 degrees F. Do not like setting in a cold stand nor cleaning deer in real hot weather.
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If your trial loads are done at a rational temperature of 60, then you are fine (again, you would have to push 90 and over as well as be up at maximum for this to be an issue)

Once they came up with non temp sensitive powders then all the fun began.

We did fine with good loading practices before that.

All this business about freezing cases and coolers and all that has gotten out of hand in my opinion.

Target shooters have a desire for this as it helps stabilizes ballistics when you are punching 1/10 MOA holes.

Some of what I use is temperature stable, but I also have a range of 75 deg down to 0 I shoot in and while not competitive I am target shooting looking for that awesome hole in one group (close, no cigar)

Note in my case is a reverse, I am simply trying to keep velocity stable for target, the colder it gets the less problem there is.

Any load development done at zero, I just keep an eye on how close to max that load is getting and hold it short.

Yes you can shoot yourself in the foot but you really have to try and also not be aware of the factors.

In diving you can come up so fast you blow your lungs out.

They teach you the basics, don't do that, exhale all the way, perfectly safe. Granted, the first time they do it there is a diver with you with one hand on your harness and the other cocked to punch you I in the gut if they don't see bubbles coming out.
 
All this business about freezing cases and coolers and all that has gotten out of hand in my opinion.

Target shooters have a desire for this as it helps stabilizes ballistics when you are punching 1/10 MOA holes.
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R 20: they have moved the goal posts since back in the days when the powder/bullet/scope/rifle options were more limited.

F-CLASS used to use the 1 MOA x ring and 2 MOA ten ring . Now it's a 1/2 MOA x ring and 1 MOA ten ring.

A good 600yard score down here is 590-25x or so. Down in Donaldsville, LA there is a guy who Regularly shoots 600/600 (in other words perfect) and around 35x.

That's why this temp sensitive stuff matters so much.... because that's my competition
 
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