Bill,

Thank you for putting forth the effort. This is a great 1st post. I believe your calculations are quite sound. As for Chrony confirmation? I did work my load up to 80 grains of T7 3F, this load was then chrony'd at an average of 1470 FPS.

I did not have an opportunity to unload this on an elk but will have a couple of deer tags in my pocket later this fall.