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Double Rifles, Single Shots & Combinations >> Double Rifles

DarylS
.700 member

Reged: 10/08/05
Posts: 26998
Loc: Beautiful British Columbia, Ca...

Re: PSI vs CUP
18/09/07 12:36 AM

Yes - that was interesting. Trouble is, there is no reliable method of co-relating CUP and PSI over a broad range of calibres. Some ctgs., like the .44 mag, and .45 Colt, .45/70, .450 Marlin and .458 Mag. run identical or very close numbers, CUP and PSI, whereas others, like the larger cased, small bore magnums show vastly different numbers at the same pressure.
: It was indeed a shock some years back, to learn that 'normal' max pressures were in the 63,000 to 65,000 PSI range for modern rounds and some not so modern.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

Post Extras

Entire topic
Subject	Posted by	Posted on
PSI vs CUP	bonanza	17/09/07 06:30 AM
Re: PSI vs CUP	400NitroExpress	19/09/07 03:18 AM
Re: PSI vs CUP	bonanza	19/09/07 10:13 AM
Re: PSI vs CUP	DarylS	18/09/07 12:36 AM
Re: PSI vs CUP	CptCurl	17/09/07 09:12 PM

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