Yep, I do.
I plink in my garage which is a bit more than 10m long and perfect for the job because I don't bother anyone. Besides that, its cooler inside, it was nearly 40 in the shade today
My gun is a Diana 100 single stroke pneumatic with the stainless steel action, which I had from new more than 10 years ago.
Its more accurate than I'll ever be and its never missed a beat.
This http://www.minisniping.org/ looks like good sport and very challenging when one gets fed up shooting at 10m.
Luckily my gun has scope rails and is a bolt action, so I'm all set up to give it a go.Just need to find some free time.......