One thing keeps popping up, that I haven’t seen discussed yet, is the issue of temperature on nodal point identification. If a minimum load is developed on an assumed minimum temperature, and a maximum load developed on an assumed maximum temperature, the load band recommendation suddenly becomes very narrow, often within 1.5 grains for cartridges using more than 50 grains of powder.
I have found that an accuracy nodal point occurs within this band, with the greatest degree of flexibility and tolerance for changes in temperature. Even though point of impact changes still occur, hunting accuracy tolerances at least are maintained.
Whilst I cannot “prove” this theory to be correct, I have yet to prove it wrong.
Would love to receive more articles on this subject.

I believe the 4350 comparisons because it aligns with my personal testing, that led to use of I over H.
This was with a 26wssm.

Maybe I missed it, but I didn’t see how they surmised that barrel temps messed with powder temps -in their testing.. I found that I would have to leave a 6XC sized case in a warm chamber for ~1min before velocities change. I’m sure they noticed that as well.

I’ve done a fair bit of cold bore load development, and it’s alot of work for sure.
Some things I’ve learned for hunting related to temps:

-Be fully ready to shoot before ever loading. Never waste time once a round is chambered.
-Load single shot.
-For a hunting load keep ammo in pants pocket both at the range, and in the field, regardless of temps.
-Choose cut rifled barrels for hunting guns.
-Use purpose built loads below 40deg(due to bore constriction, and special ignition needs).

A side note about the cooler idea; Do not reduce ammo temps below dewpoint, else you’ll get water in the chamber with loading(dangerous).
If shooting in warm weather, ammo temps will vary less by warming it, rather than cooling it. Hence the pants pocket warming. Your body is an excellent temp regulator.