To add penny from my experience. Hill Mk5 pump 0-3000psi 48ci total 60min of pumping with 2 breaks. The last 1000psi was quite good work out. 0-3000psi 13ci 20 min in one go. Again last 1000psi nice work out. So it is doable. In the future I may look at the new umarex compressors but it is not...