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Airguns by Make and Model => Crosman Airguns => Topic started by: imadunatic on September 12, 2016, 06:24:27 AM

Title: 760 Pumpmaster Chamber Tube Pressures?
Post by: imadunatic on September 12, 2016, 06:24:27 AM

Has anyone been able to measure the piston/chamber tube pressures inside a standard 760? I have seen people claiming around 1000 PSI, but it's always been kind of hearsay and I'm hoping for some hard numbers so I can figure out some safety allowances.

Thanks,
Kevin

Title: Re: 760 Pumpmaster Chamber Tube Pressures?
Post by: moorepower on September 15, 2016, 04:04:05 PM

There is a thread on 13xx/ 2289 piston testing that will tell you what you want. Stock 10 pumps looks to be around 750 psi. With a flat top piston and valve you are looking at around 1000 psi with 10 pumps.