I'm no Gunwriter but I have some of these for my 243 so I asked Hornady this question:
"What is the range of velocities that I can expect the best performance from the 6mm 100 grain BTSP, Item Number 2453, on deer size game? Thanks."

This was their answer:
"Thank you for your inquiry. The minimum velocity for expansion on the 6mm 100 gr BTSP is 1800 fps. It is capable of having a muzzle velocity window of 2500-3400 fps which is what we recommend."

Maybe someone could figure out at what range the velocity would drop to 1800 fps.

Wag more, bark less.

The freedoms we surrender today will be the freedoms our grandchildren will never know existed.

The men who wrote the Second Amendment didn't just finish a hunting trip, they just finished liberating a nation.