Bullet Bunker is a product that I first saw at the 2012 Shot Show.
This is a clean and safe alternative to the common sand bunkers many gunsmiths build for themselves. If you have ever used a home-made, or the fun spelling (homade), bullet trap you know they are effective but usually dirty. and they lead dirt and dust all the time.
The bullet bunker is a cost effective answer that also allows for accuracy testing as well as simple test firing. This year the bulletbunker.com
is introducing 8 new models. The bullet bunkers are available for use with calibers as large as 375 H&H. They can also handle full auto fire. There is even a digital target system available as well as more conventional paper target systems for fast target changes.
I gotta get me one of these!