Take this for what it's worth.

My test used cardboard 1/2 gallon cartons lined up in a row at 50 yds.

I used an 11.5 inch barreled ZM weapons LR300 chromelined 1in9 twist barrel.

Results:

68gr Hornady BTHP match (handload): Fragmented ~60%, penetrated as far as XM193 below.
52gr Sierra Match King (handload): Fragmented ~75%, but didn't penetrate as far as the 68gr
55gr XM193 factory: Broke in half at the cannelure, only recovered the top half, I assume it did not fragment, penetrated into the 5th carton.
55gr Winchester White box from Walmart: Did not fragment.

I have done the same tests previously with plastic 1 gallon milk jugs and the results were about the same (didn't test XM193 and 52gr fragmented ~100%).

When I get my chronograph replaced I will repeat these tests with velocities.

My conclusion: Being shot with any of these rounds would really ruin your day .

Disclaimer:  I do not have a degree in ballistics nor am I a ballistic scientist.  This information is for entertainment purposes only.

Good Job Ridge!

Here is another cool water jug (milk jug) test site:

stevespages.com/page8f223remington.html

good job!!!!!

and Thanks!