Yes I never trust that even with "temp stable" powders.It's NOT temp stable, it will speed up in hotter temps. I've used it with decent success when it's hot outside, but only with loads developed while it's hot outside.
Just something to be careful with during the winter months, don't drop a max-pressure load into the rifle in July without putting some thought into it.
I use Ramshot magnum in my Benelli R 1 chambered for .300 Win Mag with excellent accuracy.Is Ramshot Magnum good for 300 Rum? 300 WM? 7 mag? 25-06?
Always used Hodgdon and IMR. Just looking to expand options.