More shooting tests...Cinder Blocks

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Did a demo for my Cadets, long ago, using 'em. Three of us big kids shot one to wee tiny pieces and a whole bunch of dust. Both the 7.62 NATO and .303 British will go right through at 100 yards. First shot was one of the .303's. Broke the block with an 8 foot or so pillar of dust. My first shot with a semi'd M14 broke it in half with a 10 plus foot dust colume. We then proceeded to shoot the block to pieces.
 
I shot up some cinder blocks with .45 ACP and 9mm several years ago at an informal shoot. I can report that a cinder block will stop one .45, but not fifty of them :D
 
Careful with the cinder blocks fellas, That whizzing sound by your head is danger danger..........BTDT, took one in the leg, 'twas only a minor scratch tho.
 
Cool, but I can't believe the 12 Gauge slug did not pass through the block and the jug. Heck, they go through just about everything else.
 
I know you guys are very enthusiastic about your tests...and that is good. We all like to have fun shooting things up.

However, your test proves absolutely nothing. Building blocks are not buttered with mortar and set one on top another when used in construction. They are buttered, set over vertical and horizontal rebar and then FILLED with a pea gravel, sand and cement mixture. Building block walls are solid when constructed correctly for building use and contain a network of wire tied rebar.

If you were to build with blocks and left them hollow...the building wouldn't be very strong. It takes rebar and concrete mix slurry to interlock them and that is where the strength comes into play.

Build yourself a wall to proper building spec, 4 courses at a time to make sure the cavities are all completely full. Be sure to properly use rebar and concrete / aggregate slurry from the top. Mix your block filling medium to a 8-9 inch slump to ensure proper filling...allow it to cure for 21 days...then redo the test.

When you see a proper commercial building done with these blocks you can assume that they are filled and will provide proper cover from most rounds short of 50 BMG.

Cheers
Mac.
 
Of course, "cinder" blocks haven't been around for about 60 years or so since the end of the age of coal locomotives, although fly ash looks promising. Concrete Masonry Units , when properly filled as mentioned above, as a strong wall building product that almost rivals poured in place concrete with rebar in forms.......:D

Just sayin'.....................
 
Nice video idea, but I had no idea what I was seeing. The guy talks about a water jug behind the block to show if there was penetration, then cuts the video so fast after the shot that I can't tell if it did puncture the jug. Each shot the cap color changes too. Does this mean the jug was broken each time?
 
Vermonter,

I hauled concrete for 7 years... Delivered to wall pump jobs more times than I can count...I have never seen corners poured leaving the wall empty. I don't know what building code that would meet. Every wall pour I delivered was full pours...including inside walls.

Sounds like a budget cutting process to me.

Cheers
Mac.
 
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