Originally Posted by mathman
I'd clock that load before I launched it at a game animal.

I just ran a linear regression through a bunch of IMR4895 data for a 140 in the 280. Extrapolating down to 28 grains shows a predicted speed of approximately 1870 fps. So you're starting the bullets out near a typical minimum recommended impact speed.


Well then, put out some media to test it in, and see how it does...a ballistic tip will open up reliably down to 1300 fps or less...