The British system of chamber pressure measurement is incompatible with both the US Radial Copper Crusher units and Piezo Peak Pressure Methods. ... But the loads you described would very likely be within 19 TPSI using the British Axial Pressure measurement system. The 7.62 Converted Rifles were actually Proof Pressure tested to higher pressure ...

For example, the SAAMI maximum pressure for the 7.62×51mm is given as 52,000 psi (CUP), or 62,000 psi (430 MPa); the .45-70, on the other extreme, is listed as 28,000 in …

Home Forums Hunting & Shooting Ask The Gunwriters Pressure 308 Win vs 7.62 Nato: Forums Member List Calendar Active Threads: Previous Thread: Next Thread : Print Thread: Hop To : Page 1 of 2 : 1: 2: Pressure 308 Win vs …

Frankford Arsenal set peak pressure limits for the 7.62 NATO round at 50,000 cup; same as the .30-06. Winchester set their commercial version called the .308 Winchester to …

The pressure generated by a .308 Winchester cartridge is generally higher than that of a 7.62 NATO cartridge, but the difference is usually around 4,000 pounds per square inch …

My understanding has always been that 7.62 was lower pressure than .308. Generally speaking, he thicker case on 7.62 means less powder. This is somewhat …

What gets misconstrued is that originally 7.62x51 NATO was measured in CUP(Copper Units Pressure), which is a copper crusher system. The pressure limit of the cartridge was 50K CUP. Somehow over time this has been assumed to be 50K PSI. It isn't the same unit of measure and there is no conversion factor that I know of.

Pressure to give the product (material) can be between 2-30 Mpa(roll width surface)adjustment; under special circumstances, the pressure value can be larger Characteristics. 1. the material forced by mechanical pressure compression molding, you need not add any . wetting agent, the product purity is assured.

For more on the copper crusher vs. Piezo transducer confusion, this article about the 7.62 NATO/.308 Winchester is good. By now you are probably wondering, what is the "real" pressure? ... 39,160 psi (2700 bar or 270 MPa), using a CIP copper crusher. But the "real" pressure is the same in all four examples. The differences are all ...

The use of these two different gauges by the US military (copper crusher) and the commercial SAAMI specs (piezo) is responsible for the fictitious net rumor that .308 is loaded …

a. Crusher gages - used primarily when only . t. ..,ver pressure is i'equired (sec Appendix A for description) b. Electrical pressure transducers -used,,prs time and maximum pressure data are required for weapon chambers or r" oil •)ytteus (see Appendix B for description) 3.2 Crusher Gages. 3.2.1 Cleanliness.

a list of pressure standards for rifle cartridges. In the U.S., voluntary pressure standards for rifle cartridges are set by SAAMI, a member of ANSI.Most other countries in the world follow the standards of Europe's CIP (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives or Permanent International Commission for the Proof of Small-arms, sometimes …

Ruger determined that firing a .311" into a .308" bore using standard pressure 7.62x39 ammunition increased chamber by about 5,000 CUP. Ruger determined that both their …

The pressure difference between a .308 and 7.62 at equal bullet weights and similar powder charge is insignificant. ... The US Army continues to use (as of 1995) the M-11 Copper Crusher device for pressure measurements of small arms ammunition. The M-11 was enhanced, when in 1982, it was noted that the results ...

7.62 mm (7.62×51mm NATO) Service Pressure (Pmax) MPa / (psi) = 415.0 / (60,190) Pressure recorded in NATO design EPVAT Barrel with Kistler 6215 Transducer or by equipment to C.I.P. requirements An article on NATO cartridges lists the following: ... The crusher method does not measure the peak pressure, what we really get from this method is ...

The modern STANAG EPVAT piezo pressure specs for NATO 7.62 x 51 is 60,200 PSI, which supersedes the 1950s 50,000 PSI copper crusher spec. …

For example, the SAAMI maximum pressure for the 7.62×51mm is given as 52,000 psi (CUP), or 62,000 psi (430 MPa); the .45-70, on the other extreme, is listed as 28,000 in both CUP and psi (190 MPa). ... One explanation that I have seen is that CUP uses a copper crusher that is effected by the duration of the pressure as well as the pressure ...

Coolant expansion tank c) Crusher drive pump pressure (when crusher 8. Crusher circuit filter running to normal direction) 9. Hydraulic pressure filter 2. Engine primary fuel filter and water separator 3. ... Page 62 9. Remove the screen transport locking. 10. Remove the conveyor belt rubber strap. 11. Start the crushing process and observe ...

Maximum Average Pressure (MAP)* = 65,000 psi Instrumental Velocity: 225-gr @ 2,800 fps Crusher pressures not established. * Refer to ANSI/SAAMI Z299.4 for pressure guideline interpretation description.

Comparing pressure of the two rounds as measured by copper crusher, the .308 is 52,000 CUP and I the 7.62 is around 44,000 CUP (sorry, can't cite a source for 7.62 in CUP, but I remember seeing it somewhere around that figure). For confirmation of this info, check out page 57 of the online reloader's guide at

Gun chamber pressure is an important parameter in proofing of ammunition to ensure safety and reliability. It can be measured using copper crushers or piezoelectric sensor. …

Comparative analysis of gun chamber pressure was conducted for 7.62 × 51 mm ammunition using Electronic Pressure, Velocity, and Action Time (EPVAT) system with piezoelectric pressure transducers ...

PROTOTYPA UZ-2002 Universal Ballistic Breech (Receiver) is NATO AEP-97 (MC MOPI, AC/225) compatible universal receiver for testing of cartridges of cal. 5,56 mm x 45; 7,62 mm x 51; 9 mm x 19 and 12,7 mm x 99 NATO. UZ-2002 supports EPVAT (Electronic Pressure, Velocity and Action Time) or Precision test procedure.

Fig. 1 is the frontview of the utility model high pressure cell crusher, and Fig. 2 is the side-view of the utility model high pressure cell crusher.Can see that by figure the utility model high pressure cell crusher is made up of worktable, guide rod 11, top board 7, pressure plate 14, piston mandril 9, Cytology Lab 5 and Cytology Lab piston rod 9. Top board 7 is on pair of guide rods 11 tops ...

7.62 Nato min--1.6355″ ... The copper crusher and piezo systems of measurement do not inter relate. You see back in the stone age before piezo transducers were invented, pressures were measured using a crusher and anvil system and they weren't measured in PSI They were measured in CUP (Copper units of Pressure) The Army Ordnance Corps used ...

Home Forums Hunting & Shooting Ask The Gunwriters Pressure 308 Win vs 7.62 Nato: Forums Member List Calendar Active Threads: Previous Thread: Next Thread : Print Thread: Hop To : Page 1 of 2 : 1: 2: Pressure 308 Win vs 7.62 Nato #5542044 08/20/11. Joined: Jun 2004. Posts: 32,404. MN. S.

downtime by monitoring operating pressure, temperatures, rollers RPM and other key parameters in your crusher. The protection is activated in steps, starting from informative warnings, then progressing to inform and log data for operational improvement, troubleshooting, and eventually shutting down the crusher to protect it whenever needed.

Use Factor of 0.7—0.9 for Primary Crusher. 7. Variable Speed Drive may reduce capacity by 40% when feeder width is selected for largest stone or width of Primary Crusher. 11 ... 10 62 125 187 250 312 375 11 69 137 206 275 344 412 12 75 150 225 300 375 450 13 81 162 244 325 406 487 14 87 175 262 350 437 323. 12

The casemouth transducer psi for the 7.62 NATO is actually 60,000 - 62,000 psi depending on the type of 7.62 NATO ammunition. As I explained earlier, my tests have shown …

Frankford Arsenal set peak pressure limits for the 7.62 NATO round at 50,000 cup; same as the .30-06. Winchester set their commercial version called the .308 Winchester to 52,000 cup but their crusher gauge system was a bit different than the arsenals. They are the same for all practical and use purposes.