However, i've never punched a shoulder, with any bullet (partition, AB,AFrame, core-loc, win. powerpoint, BT, VLD) and not lost meat.
Even a mono, like the 80 gr. TTSX at 3,600 fps out of a .240 can mess up a lot of tissue. I think it depends on the bullet and the velocity.
DF
And a hog shoulder hit by a 120 E-Tip (about the same as a TTSX) out of a 26 Nosler at 3,450 fps. Speed kills and it messes up stuff, too.