You can determin how many fills on your PCP with different size tanks.Gene; Myself, I haven't yet been able to get one of these fill charts to actually give me a reliable reading yet !I have a Marauder .22 cal., a scuba tank rated @ 3000 psi, @ 80 cu. in. ...... I fill it to 2600, every time. Then when the gun gauge gets down to 2000, I re- fill the gun to 2600. Now, when I enter this info. into this latest fill chart ( below link ) it states 6 refills ! BUT the reality is, I now have 14 re-fills at the present AND am still going ( re- filling to 2600). SO, as you see, I am having a hard time getting actual reliable info. with fill charts. ......Any ideas / opinions ? ......JUST NOW re- calculated w/ the chart and it NOW states - FOUR (4) Re-fills.......Confusing me even more ! http://www.crosman.com/university/fill-calculator
Gene; Myself, I haven't yet been able to get one of these fill charts to actually give me a reliable reading yet !I have a Marauder .22 cal., a scuba tank rated @ 3000 psi, @ 80 cu. in. ...... I fill it to 2600, every time. Then when the gun gauge gets down to 2000, I re- fill the gun to 2600. Now, when I enter this info. into this latest fill chart ( below link ) it states 6 refills ! BUT the reality is, I now have 14 re-fills at the present AND am still going ( re- filling to 2600). SO, as you see, I am having a hard time getting actual reliable info. with fill charts. ......Any ideas / opinions ? ......JUST NOW re- calculated w/ the chart and it NOW states - FOUR (4) Re-fills.......Confusing me even more !
If I were to guess, I would say that the cheesy little gauge that they put on the Marauder is not very accurate. Other than that, the Crosman fill guide might be a little optimistic as well. Oh, and there is air loss every time you connect and disconnect the gun (hose volume plus what you bleed off to disconnect).
With a Great White it computes 999 fills!97 cubic feet = 167,617 cubic inches (per Google), @ 4500 psi, to 3000 psi 1st, & 2000 psi subsequent fills = 999 fills. Could that even be remotely close?