"cup pressure" how is that actaully measured? - The Firearms Forum

dammitman · 06-01-2009, 06:02 PM

i have read alot about cup pressure and i have an understanding what it is but, i dont know how anyone actually can measure it? and they dont have the spects just so so, they have it down in print to hundreds of PSI. but what i dont understand and why i am asking this question is there is so much conflicting load data coming right from manufactures of products that i am not sure what to believe. but back to the first question, how is cup pressure actually measured?

woolleyworm · 06-01-2009, 06:16 PM

knowing little about it myself, I did a little more research, here's what I found.

http://www.chuckhawks.com/pressure_measurement.htm

http://en.wikipedia.org/wiki/Copper_units_of_pressure

some very interesting reading, Dammit.....great topic !!

glocknut · 06-01-2009, 09:44 PM

Are you talking about an "Athletic Cup"?

mike
gn

woolleyworm · 06-01-2009, 09:47 PM

Quote:

Originally Posted by glocknut

Are you talking about an "Athletic Cup"?

mike
gn

and if he was?????

curious to find out your explaination of this one......

millwright · 06-02-2009, 04:16 PM

"CUP" dates back to the days before pizeo-electronics...

Been lots of methods of measurement of "chamber pressure" over the years. Most of the early ones were analog, and some were derivative. Of late the digital fad has predominated. Pressure can be measure directly ala the "copper crush cylinder" method with a pizeo electric crystal replacing the copper pellet and a modified chamber/cartridge. For us "realtive" types, some "blue pills" and a stain guage sufficies .>MW

zfk55 · 06-02-2009, 08:14 PM

Are Athletic cups used on or by glocknuts then?

Latigo

Contenderizer · 06-05-2009, 04:49 PM

Quote:

Originally Posted by millwright

"CUP" dates back to the days before pizeo-electronics...

Been lots of methods of measurement of "chamber pressure" over the years. Most of the early ones were analog, and some were derivative. Of late the digital fad has predominated. Pressure can be measure directly ala the "copper crush cylinder" method with a pizeo electric crystal replacing the copper pellet and a modified chamber/cartridge. For us "realtive" types, some "blue pills" and a stain guage sufficies .>MW

Huh?
Blue pills - are we talking about Viagra? This I understand.

Actually, the Sporting Arms and Ammunition Manufactures' Institute (SAMMI) established standards for arms and ammunition and does the testing. In Europe the Commission International Permanente (CIP) performs the same function.

%0

dammitman · 06-05-2009, 04:58 PM

Quote:

Originally Posted by woolleyworm

knowing little about it myself, I did a little more research, here's what I found.

http://www.chuckhawks.com/pressure_measurement.htm

http://en.wikipedia.org/wiki/Copper_units_of_pressure

some very interesting reading, Dammit.....great topic !!

now that was actually the best reading i have picked up off this site ever. very informative. thanks for those links!!!

Bruce FLinch · 06-06-2009, 10:02 AM

Quote:

Originally Posted by zfk55

Are Athletic cups used on or by glocknuts then?

Latigo

I wouldn't touch that!

06-01-2009, 06:02 PM	#1
dammitman V.I.P. Member Join Date: Feb 2009 Posts: 247	"cup pressure" how is that actaully measured? i have read alot about cup pressure and i have an understanding what it is but, i dont know how anyone actually can measure it? and they dont have the spects just so so, they have it down in print to hundreds of PSI. but what i dont understand and why i am asking this question is there is so much conflicting load data coming right from manufactures of products that i am not sure what to believe. but back to the first question, how is cup pressure actually measured? -->

06-01-2009, 06:16 PM	#2
woolleyworm TFF Moderator/Host Join Date: Feb 2009 Location: SW Fort Worth Contributor Posts: 4,888	Re: "cup pressure" how is that actaully measured? knowing little about it myself, I did a little more research, here's what I found. http://www.chuckhawks.com/pressure_measurement.htm http://en.wikipedia.org/wiki/Copper_units_of_pressure some very interesting reading, Dammit.....great topic !!

06-01-2009, 09:44 PM	#3
glocknut Advanced Senior Member Join Date: Dec 2003 Location: THE FORUM MASCOTT... Posts: 12,482	Re: "cup pressure" how is that actaully measured? Are you talking about an "Athletic Cup"? mike gn __________________ Where O where are you tonight? Why have you gone and left me alone? I searched to world over and a thought i found true love... You met another and PTThhh you were gone....

06-02-2009, 04:16 PM	#5
millwright Advanced Senior Member Join Date: Jun 2005 Posts: 1,443	Re: "cup pressure" how is that actaully measured? "CUP" dates back to the days before pizeo-electronics... Been lots of methods of measurement of "chamber pressure" over the years. Most of the early ones were analog, and some were derivative. Of late the digital fad has predominated. Pressure can be measure directly ala the "copper crush cylinder" method with a pizeo electric crystal replacing the copper pellet and a modified chamber/cartridge. For us "realtive" types, some "blue pills" and a stain guage sufficies .>MW

06-02-2009, 08:14 PM	#6
zfk55 V.I.P. Member Join Date: Mar 2009 Location: Lost Prairie Montana Posts: 237	Re: "cup pressure" how is that actaully measured? Are Athletic cups used on or by glocknuts then? Latigo __________________ Latigo A Montanan and an actual American with a real American Birth Certificate.