Can it shoot a .661BC at 2860fps?
No it can't however for the game and way I hunt all year such a load would not be optimum in terms of trajectory, recoil, richocets etc.
I have a 7mm WSM that's shooting the 168 VLD's well. Not much use for it here.
For VT I use the .358 Win 99F. Optimum for my woods.
Got one?