GTA

All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: trinket on February 20, 2013, 02:59:44 AM

Title: Crosman's New PCP Fill Chart
Post by: trinket on February 20, 2013, 02:59:44 AM
 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. rifle, 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 it states 4 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 ?
Title: Re: Crosman's New PCP Fill Chart
Post by: Rescue35 on February 20, 2013, 08:36:59 AM
Scuba tanks are rated in cubic FEET. In your post you noted 80 cubic INCHES.
Title: Re: Crosman's New PCP Fill Chart
Post by: sperho on February 20, 2013, 04:59:33 PM
Use 677 cubic inches for an 80CF SCUBA cylinder.  I answered this question in more detail in this thread:  http://www.gatewaytoairguns.org/GTA/index.php?topic=42828.0 (http://www.gatewaytoairguns.org/GTA/index.php?topic=42828.0)
Title: Re: Crosman's New PCP Fill Chart
Post by: phoenixx84 on February 20, 2013, 08:54:48 PM
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. rifle, 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 it states 4 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 ?

I usually use this PCP refill calculator - http://www.calc.sikes.us/2/index.php (http://www.calc.sikes.us/2/index.php)

For the MRod .22 -> Enter 215 in the field "CC of your gun's tank"
For the Condor .25 -> Enter 490 in the field "CC of your gun's tank"