7.62 / 6.5 / 5.56 vs concrete block

[stanc]

To be sure, mass is important, but it is only a part of the system and the Grendel platform puts significant constraints on the mass that can be brought to the problem.

I will repeat, one has to get through any intervening material before the response in gel (or any liquid) begins to be important.

Does this mean you still don't understand that the 6.5 and 7.62 MatchKings did get through the barrier???

Bottom Line: If the purpose of this thread is merely to entertain, then I will read with amusement. If, however, the comments appear to impact the Grendel (or other cartridge) design space, I will likely add more comments.

Comment all you wish. But it'd be nice if you show evidence that supports your claims, instead of just posting your beliefs.