Be careful wit that stuff.
I bought a 223AI barreled action off a friend, Bartlein barrel on a TL2 action (very accurate, BTW).
He developed a load with 2000MR and 75 AMAXs, a little shy of 3100 FPS IIRC.
He included a lot of Lapua cases and a few dozen rounds already loaded. I was lazy and didn't feel like pulling them down, so I shot them on a 90 degree day.
3200 FPS and blown primer pockets is what I got. The loads were not developed in the cold of winter, either, more like 45-50 degree weather.
Too temperature sensitive for me to take seriously, plus I found some Varget.
Very high MVs, though.
My point is, be aware of temperature changes with that powder.
My buddy bought a .308 20" barrel RPR. He was getting velocities in the high 2800s with 168 SMKs and we could have pushed it more but there was no room in the case (close to 50 grains of powder is where we quit).