Just carry spares and swap them out between hits...
Impressive tests though. The results suprised me, I had no idea brick was so bullet resistant.
In your INGO box-o-truth it appears that the bricks and backerboard are simply held in place by grooves in the frame of the box-o-truth.
Now in your box-o-truth system when a bullet hits the wall, the bricks can bounce vertically, as well as having the ability to independently move laterally.
-- Some older brick homes are made of more than one layer of brick or brick and block layers. They would provide even more protection.
While I think you guys has a load of fun I don't think your test was valid because the bricks were loose stacked and were not attached to the backerboard.
You may think I'm being picky but if a test is supposed to replicate real life then bricks should have been mortared together. I've done a fair amount of tile setting and individual tiles are pretty fragile but when they are set in place you can pound on them with a hammer and it takes a good deal of effort to damage them. Its a situation where the system of mastic and grout work together with the backerboard and the tile itself to make something that is greater than the sum of its parts. I believe (but obviously haven't tested) the same is true with a brick wall.
As you point out early in your post, the brick wall is a stack of bricks, secured not only together with mortar, but also secured to the wooden backerboard with metal straps. The backerboard is itself very solid because its part of the 2x4 or 2x6 structural wall that is rigid. So a rigid wall structure, reinforced with the plywood sheathing that doubles as the backerboard for the brick forms a very solid, immoveable wall structure.
In your INGO box-o-truth it appears that the bricks and backerboard are simply held in place by grooves in the frame of the box-o-truth.
Now in your box-o-truth system when a bullet hits the wall, the bricks can bounce vertically, as well as having the ability to independently move laterally.
I'm not trying to be overly critical, just pointing out that the energy of the bullet hit is dispersed through the 'loose' wall in your system, but in a real wall hits what is, in effect, a monolithic solid combined of several different materials that are bonded together.
All that said, it looks like a fun test and I'd have enjoyed shooting the bricks too!
Excellent report! Thank you!
One question I have is 'does brick become harder or more brittle as it ages and is exposed to the elements?' Were these "fresh" bricks, or were they aged bricks that had been taken from an old building?
Excellent demonstration guys. I can only dream of having a place like this to shoot. Thanks for taking the time to do this. Looks like it was a lot of fun too!
The food was awesome as well. The brownies had chocolate chips in them and I had milk served in a frosty mug. .