RE: T-7 vs. APP measurements
For comparison sake, in my 50 cal Magbolt 100 gr of 777 2F is about 300 to 400 fps faster than 100 grains of APP 3F using a 300 grain Shock Wave. I've heard but have not tested that it takes 130 to 150 grains of APP to equal 100 grains of 777 in velocity. Good luck to you and your wife.