I've killed 6 deer with them (139 grain, 7mm Rem Mag). All were one shot kills that exited, but all were also high shoulder shots that left the deer in question with no choice but to drop.

The GMX is a highly controlled-expansion bullet that will make small holes on both sides. It's best placed in the shoulder where the relatively hard bullet has something to work against. Like with the Barnes, you can load a lighter bullet that you'd otherwise select for a given species, as it's just not going to come apart, no matter how fast you push it.

It is, hands down, the most accurate bullet out of my 7mm Mag. The group below is five shots (following an adjustment), and it's factory Hornady Custom ammo. If I wanted one bullet to hunt everything from deer to black bear to elk with the same gun, the GMX would probably be it.

[Linked Image]

Last edited by richardca99; 02/24/11.

Chris