OK, these aren't NE's, but they do give you another vantage.

I'm really hoping that somebody gets out with with their .500 Boswell or .470 Rigby or .465 H&H or some such and gives us the real deal.

In the meantime, the gauntlett is dropped, so to speak.

Here is what a 9.3x57 285 grain Prvi Partizan Round Nose Soft at 2100 fps and and a 6.5x55 140 grain Remington CLSP at c.2650 fps do to the same piece of steel identified in the edit above, last post, does.

The 9.3 only left a very deep dent and a big tit on the opposite side, but did not fully penetrate. The 6.5 penetrated the 3/8 inch steel beam and then the board behind it and the steel plug and some bullet fragments were found in the jug.

The 9.3 fragment shown is actually the bullet, with the round base of the jacket soldered to the inside bottom of the hole. It poured/bounced back about 10 meters toward me. As usual GREAT safety measures must be taken if you are going to shoot steel plate.