I was shooting my .460 Wby today with 500 grain bullets at 2600 fps!
I tried to shoot 3 shoots fast at 40 yards and all 3 shoots was in a circle big as a milk pack.It took me 4 seconds between the shoots.
I think that a 600 OK in a bolt action that take 3-4 rounds loaded with 900 grainers at 2000-2300 FPS is much better killer than a semi automatic or a double rifle.

No pictures?

Canuck

No I dont have any digital camera or scanner so I can not post any pictures.

Overkill. You did better than me. Last time I fired a 460 it was a light unscoped rifle and it took me 4 seconds to recover my wits let alone get off another shot. As for hitting a milk carton, It would have to have been pretty close.