J. Soca wrote:
chuck wrote:
30mm on the side of tanks is plenty for stopping any 50 cal. Generally 10mm of armor steel can reliably stop 50cal rounds.
It's not easy finding a good answer out here on the web about the real penetration level of those .50 cal rounds Chuck , more like an specific and concrete answer .. i did find a pretty interesting website of a guy who tested it's sniper rifle i think with an old round and is pretty impressive
http://blog.ryjones.org/2009/01/25/50-b ... ion-tests/ thanks for chiming in now i have a better idea
Hi,
I'm the guy who did this test, so I wanted to let you know a little more about them. The ammo was WW2 repack (1944 production, 1945 or 6 repack) AP ammo I peeled from a belt. It was fired from an 18" barrel at the target from perhaps 30 yards (time fades the memory exactly).
The steel you see is weaker than armor in two ways. One, it is not really hardened to any degree. While it is steel, it's just steel I bought from Home Depot; it's sold for welding & fabrication. It might be comparable to 2" of steel from the pre-Dreadnought era, except - the second weakness - it isn't a unit. If it were 2" of armor plate, I suspect the round I fired may have polished the surface some. AR500 is sold for use as targets for rifle ranges; at ~400 yards, the lifespan of one of these targets (which is much thinner) is much longer. I just searched for "ar500 reactive rifle target" and found one that advertises a lifespan of over 100K rounds.
This lifespan is predicated on not using AP rounds, though, which is what I used.
To give you an idea of the difference between solid and laminar plate performance, here are three pictures of a block of aluminum of no particular hardness when subjected to the same test:
http://www.flickr.com/photos/ryjones/2245753917/ http://www.flickr.com/photos/ryjones/2252075465/ http://www.flickr.com/photos/ryjones/2245753807/.
You'll notice the round was stopped in the block.
Anyway, just didn't want you to draw too much from a random test some guy did on the internet.
Ry