In my Sako A7 I worked up to 3121 fps with Big Game I stopped there but still had no pressure signs.
As of yesterday I found my load of Big Game under a 120 NBT at 3060 fps SD=7 and five shots went .51". I had walk away from the bench after that. I am good to go.
The only variable hanging out there is temperature. I did this work-up at 73 degrees. Would like to see what it does at over 90.
