Nothing grand, just a junction box filled with duct seal. (I have 3, 1 smaller more portable one and another setup in another area). This particular one gives me a max range around 55-58 feet so between 18 and 20 yards.
Just to point out the safety aspect I am shooting into a trap that will stop a .22lr, that is setup in front of 3/4 inch thick piece of wood that is sitting in a basement against a concrete wall......that is underground. So what I am saying is I could pretty much safely let off many rounds of 20mm AP.....well safely up to the point my wife murdered me.
Considering my MOST powerful Airguns are probably 700-800fps .22 spring guns or 900-1000 fps .177 spring guns with the VAST majority of my shooting in the 400-700 FPS range these duct seal setups will handle ANYTHING I have with a chuckle.
Whats nice about my setup is the trap is in one of my unfinished areas where my shooting positions are in the nice comfy finished area, so I have a pretty posh shooting setup with music or background video etc.
Yes my traps need to be cleaned. My oldest is around 19 years old and has been cleaned out every year or two this one is newer and hasn't had a cleaning in a while. If anybody is wondering Duct Seal (AKA Monkey Sh@% seriously) lasts for darn ever. My original trap still has the original duct seal. Some may have been added over the years to fill/smooth holes but the vast majority of it is same stuff I stuck into it a couple decades ago.
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