Check out the video of these guys shooting this thing it kicks a bit :o like shooting "10"30-06's at once. Needless to say it dosen't track well heh
http://www.youtube.com/watch?v=xohy9gWz7kk&feature=youtu.be
And it has a muzzle brake. No thank you.
or there is always the 700 WTF that one can actually fire from the shoulder (assuming you wanted to do that)
perfect for large dinosaurs
1132 gr @ 1700 fps (he later loaded it up to 2300 fps IIRC)
[embed=425,349]http://youtu.be/vo4ahgn_j0E[/embed]
Then the ever popular Anzioironworks in the convenient in 20mm Vulcan
now available for under $12,000
(http://www.anzioironworks.com/images/20-mm.jpg)
the one on the right
223 338 Lapua 50 BMG 20 mm Vulcan
(http://www.anzioironworks.com/images/bulletsizes.jpg)