You are going to get several replies and ideas. Here is my solution for my .177, .22, and .25 air rifles.Get a bag (or two depending on how big and deep you need the target to be) of rubber mulch from the local big box store.Black Rubber MulchPick up a container to hold the mulch, cut out the target area (may not be necessary if your guns are all powerful enough), duct tape the target area so the mulch doesn't fall out, attach clips to hold the targets, set up and use.Here are some pictures of mine:I need to top this one off.You can acquire or build as deep of a container as you need based on your needs. My bucket system stops my .25 caliber Marauder.Good Luck,CodyEdit: Have read that people are able to pull lead out of this kind of system to recast, but have not tried that myself.
Dirt is hard to beat.
Would also like to recast the lead
I went to walmart a few weeks ago and they were sold out, it does get pricey buying online with shipping sometimes.
I like the rubber multch idea I didn't know where to get it at though
I used old magazines and phone books in my basement behind my Chrono for tuning indoors with a bow target behind that . When I moved I didn't bring any of the old magazines with and I want something that will with stand the weather and can be moved from indoor to outdoor . Rubber multch is looking like it will work good