If the shot is spot on at a mild angle but the bullet does not have the weight or design to penetrate,the results are going to be less than spectacular.That's where the experience of hunters like Buzz H's friend come in.

As Wayne Van Zwoll said.

The trouble with the 6mms is that they require you to pass up shots you could easily make with heavier bullets.

My friend learned that and moved up in caliber for his Elk hunting.Broadside shots are hard to come by these days so in Elk hunting,use enough gun and bullet or tag stew is in order or worse yet,a wounded Elk.

Just my opinion and some others as I quoted.

Jayco.