I have had pretty good results with my low pressure 7625 loads in fairly cold temps, Miller. I've used them in the 20s temperature range, maybe even the 'teens, and have never had a squib load or a weak sounding one. Maybe it has something to do with wad pressure, or weight of shot charge, or primer used, or................?

I am not doubting that you have had issues, I've heard you say so before, just reporting my experiences.

All my best, SRH

May God bless America and those who defend her.