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[Caliber 22]

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[dizzums]

not sure, my benji does ok if i work it right .. i filled a 580cc bottle from empty one time on my blitz 'just for fun', did like 50 strokes at a time and just hit it every time when i walked by .. if i remember right it wasnt much more than 500 strokes, but it was awhile back

 

[JaceSpace1369]

When I pump the 250cc reservoir of my PCP, it takes 55 pump strokes for each 50 bar increase. That is from 100 to 150 bar. That is equivalent to 220 pump strokes for 50 bar per liter reservoir, or 440 strokes for 100 bar per liter, or however you want to calculate it.

Is that below average, on average or above average for hand pump efficiency for hand pumps ?

What is your hand pump efficiency ?

We all seem to be on par, it's been years since I used a hand pump but I remember doing nearly 600 pumps to fill my 580cc bottle near full from empty. I like working out, but never again.

 

[beerthief]

We all seem to be on par, it's been years since I used a hand pump but I remember doing nearly 600 pumps to fill my 580cc bottle near full from empty. I like working out, but never again.

That's why you only top off your gun every 25 or 50 shots with a hand pump . If you only hunt ,you can most likely only need to pump once a week .