Semisane
I can confirm that the .458's fly well out of my in ML's. althought, I am not using that particular bullet.
I use these .458's for elk and shooting paper. For paper I use a regular old Hornady 300 grain HP, and for elk hunting I switch that out to a 300 grain Nosler Partition.
Here is a target shot from my Omega awhile back, you can see the accuracy is there and with the Nosler the penetration and expansion is there. The Hornady's would be awesome on thin skinned deer class animals...