I have two mini 6.8's.... On one I have a Bushnell holosight and on the other a Leupold VXl 2x7x33.
Have taken hogs with both and are well pleased.
Last evening my son and I found them coming out of a canyon to feed on a nearby wheat field. They were lined up in a row walking up the narrow trail. My son was at the head of the trail with a FNAR and I was on the next ridge carrying the 6.8 with the Leupold.
He shot first and continued shooting, said he got 5.
I had to wait until they ran a bit from his postion because they were right under his feet. At one point I saw the babies running on both sides of him.
When some turned to go back down, I was able to get a clear shot away from him.
I got two in the bottom of the canyon and they both dropped when I hit them. (When the bullet hits a hog, there is a noticable "thud".)
After the excitement I measured my two at about 150yd with a range finder.
The mini 14 in 6.8 is the lightest to carry and most effective semi-auto firearm I have ever owned.
I've had the rifle for two years, although it's a safe queen.
In theory at least, the 6.8 is superior to all its competitors. But when the Army lost interest, the likelihood of cheap ammo went away. I reload, I have 6.8 dies, but I'd rather have a rifle chambered for something I can find everywhere and cheap.
I'll probably troll the gun shows for a Mini-30. Besides, I've got several ARs... need something in 7.62x39, too.