Pete, a deer rib would be equal too, or possibly even greater than, the strength of that plywood. And again I will say this, I want a bullet that will function properly in a WORSE CASE SCENARIO!! Not one that I will HAVE to choose a perfect standing still, taking in a deep breath so I can clearly sight in between ribs, pray it doesn't flinch, POS bullet. If I have a clear high shoulder shot, it's what I want. To heck with tracking and dragging. You and I are BOTH getting too old for that load of crap! I want a bullet that will deliver a "dropum right there" shot if I hit where I want. But I also want a bullet that will perform well if I DON'T have that optimum shot. Anchoring a whitetail, elk, moose, or whatever big game is what I am after. A high shoulder where I impact spine and lung is about the #1 shot there is. Larger target area than a head or neck shot and will drop them where they are.