Here in NW Fla we use the 6.8SPC and 300BLK chamberings. I switch back and forth but my hunting pardner uses a AR/300BLK exclusively.
His gun is a 16" with surpressor,shooting super. As fast as possible Barnes 110gr black tips (30321) and 125gr NosBalTips. We have killed MANY hogs >250lbs using these bullets.
We also do deer depradation with state permits and tags. The 300BLK with the above bullets are very effective on deer also.
All our hunting is done at night using thermal. Our shots are 10 to 220yds. Avg is about 80-110.
Picture is of a 305lb hog killed at 90yds using a 16" AR shooting a Barnes 110gr (30321) at 2380fps with a max charge of H110. We shoot the 125gr NosBalTips at 2240fps.
My 6.8 load is a Barnes 85gr TSX at 3000fps from my 18" Bison Armory AR. It has taken 17 hogs >250lbs and 27 >225lbs. --- SAWMAN
ADDED: If a target deer or hog is out 100yds or so into a peanut field,we shoot a high shoulder shot expecting the animal to run 50yds max. If the target is on the edge of the field or standing in the farm road,we target the animals CNS.
A high shoulder hit,using these bullet,will usually frag the spine. If a little low,it will take the top of both lungs. We want to heart intact to keep pumping blood. ---SAW