Sometimes it takes way more than 12 seconds.
Look at ER stuff... folks can get shot, lungs, heart, mixes of the two and still make it to the ER alive...they may not live, but they ain't dead in 12 seconds at times.
There are a lot of factors involved.
And twice now we've shot mature bucks double lung shots, pretty much center of both lungs, not fringes and have found the bucks alive around 3 hours later as we wait sometimes 2-3 hours before trailing. If they bed up, they can clot up. Both times as teh bucks stood up and walked off, they broke the clot and died.
Everyone says its easy to kill em. Yes and no on that.
Re the post on the 140 7 mag sierra.... thats all grand, but explain the 160 being stopped on the spinal column on a 50 pound feral pig from a 7x300...mag...
The inconsistency is whats bothered me over the years. Barnes I've shot a lot of stuff with, never lost an animal using them. Never found no expansion like some have, certianly not close after tsx/ttsx came out, and thast out to 802 yards. The variance in performance with them has been nil.
