AccuBonds are why I shoot Barnes ttsx on elk and larger. My real world experience (no where near mule deer’s) but as he stated, they are designed from for 60-65% weight retention and often don’t exit. Big animals I want a bullet to stay together, tear chit up, break bone, and leave two holes for more blood. But hey what do I know. Some people drive fords, some chevys and both will still get you there. Happy Hunting