Just thought I'd share some pictures of my homemade pellet trap. I have a few of these, 2 this size and 1 bigger.
It it has a steel plate in the back and aluminium side plates to protect the wooden box from the pellet splatter (it really does shred through it fast if you don't give it added protection.)


It has a fold up lid and on the front I use the metal brackets to hold my 8mm chipboard backers that I tape my targets to.
I use use these backers to give clean holes on the target so that there are no tears on the paper. It also makes measuring groups easy... Just open your calipers to 0.22, zero them and measure internally edge to edge. Because your callipers are now minusing the pellet width off already for you it gives you an accurate centre to centre reading - no more guessing where the middle is.
I will post pictures if people don't understand the idea.
Here is a picture of how clean it punches the holes through the target

It it has a steel plate in the back and aluminium side plates to protect the wooden box from the pellet splatter (it really does shred through it fast if you don't give it added protection.)


It has a fold up lid and on the front I use the metal brackets to hold my 8mm chipboard backers that I tape my targets to.
I use use these backers to give clean holes on the target so that there are no tears on the paper. It also makes measuring groups easy... Just open your calipers to 0.22, zero them and measure internally edge to edge. Because your callipers are now minusing the pellet width off already for you it gives you an accurate centre to centre reading - no more guessing where the middle is.
I will post pictures if people don't understand the idea.
Here is a picture of how clean it punches the holes through the target
