Re: 6 mm Remington Problem!
If I was a competitive shooter, I would be much more concerned about temp sensitivity.
Since I am an average Joe hunter, temp sensitivity is not as serious of a problem, as I develop my loads for temps similar to what I will see in the field (20 to 50 deg F).
However, I am headed out to WY for a PD shoot in June, I am anticipating temps between 75 & 100 deg F. Therefore I am holding off my 223 load development until the temps warm up a bit more here in WA.
Just my two bits.
Snohomish Co. Washington
NRA Life Member