Hope I haven't asked before and forgotten since I've loaded this combo before, but I'm fixin to do it for a 7 twist this time. So:

With TAC allegedly being so temperature sensitive, does anyone have opinions on minimum temperature for load workup when later temps could easily be upper 90s (69gr rmr, wsr primed)? Don't want to break my 16in mid AR this summer, but it's only early Spring, and I'm anxious to get started. Gonna be almost 80 (Fahrenheit!) this week....