Incognito Backstop?

I have always been on the quest to find the most quiet pcp for my use. I actually enjoy shooting the low power stuff sub12 even in .177 and .22 heck I even have a .25 set at 22FPE. The problem is my backstop makes a whack every time. Not a problem when I'm pesting because its 1 shot at a critter but to sight in and practice its loud at 1am. I am currently using my tote with rubber mulch and a foam mat to place thr target on which works amazing for all calibers but its LOUD. I tried an old drop cloth last night and same thing. Has anyone found the ultimate quiet backstop material?

Picture is a gen1 uragan .177 at 11FPE

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The smack of the pellet is always going to be loud. Sometimes louder than the shot. I’ve found slugs are much more quiet due to the ogive face. I’ve read that some have set their target with a surround on the top and sides coming in front of the target. Basically sound to the top and sides is muted but you’ll still get most noise back at you.
 
I found a card board box stuffed with old clothes to be the most back yard friendly so far, but, I am sure there is better!


Yes, the old clothes are really quiet.
The loudest is the smack on the cardboard.
But that could be eliminated if the front side wasn't cardboard but chicken wire mesh or chainlink fence mesh.
It keeps the clothes together, but no smack sound.

The bull's-eyes to shoot at can be drawn on "sheets" of rubbery synthetic material — a craft store will probably have various options — the more soft-rubbery the quieter.

Matthias
 
I have always been on the quest to find the most quiet pcp for my use. I actually enjoy shooting the low power stuff sub12 even in .177 and .22 heck I even have a .25 set at 22FPE. The problem is my backstop makes a whack every time. Not a problem when I'm pesting because its 1 shot at a critter but to sight in and practice its loud at 1am. I am currently using my tote with rubber mulch and a foam mat to place thr target on which works amazing for all calibers but its LOUD. I tried an old drop cloth last night and same thing. Has anyone found the ultimate quiet backstop material?

Picture is a gen1 uragan .177 at 11FPE

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I used a dartboard with a paper plate successfully today to sight in a 15 fpe 177. I don't think hitting the same area too many times for too long would work out unless you doubled them up. It was an exceptionally quiet target (and gun).