I have a K-gun in 500/416 and with 106 gr of H1000 and 410 gr Woodleighs, I get an actual chrono'd velocity of 2330 fps. Recoil is on par with 450 NE, 470 NE, etc....no worst, not much better...if at all. It is, essentially a 416 Rigby in a double.

Haven't taken it anywhere but the range so can't comment on game performance, but, like I said, it's a Rigby in a double.

Gary