Diana Outlaw .177

So it's about 1.5 strokes per shot once filled or if your operating on the top end of pressure. That's fine for as much as I plan to shoot it.

I see these air tanks people use for paint ball, anywhere from 5-20lb, they refill them very cheap, one dollar per 1000 lbs, tanks are 3000psi I think, would those work to top off your gun for another 50 shots?