1 hours ago Other Model 7.62mm NATO (7.62x51) FN America / Herstal IMI IWI Israel IDF Israeli German MAUSER K98 K98K Presentation 308 7.62 PRICE: 2,200.00 MANUFACTURER: FN America / FN HerstalI believe that was actually for 7.62 CETME cartridge and not. 308Description: Mauser 98 Spanish (Samco) M1916 7.62/.308, 22 inch barrel, shiny clean bore, good wodd and metal, solid action. Manufactured at famous Oviedo factory in Spain for the Spanish Army.
While 7.62 may or may not have seen use in second-line converted Mausers, they were converted for full 7.62 NATO and nothing else.H.P. White labs has tested some of the Spanish Civil Gaurdia Mausers to failure only after a proof load that was several times SAMMI. Israel only used its Mauser rifles in their original configuration for a short period, when NATO countries adopted a standard rifle cartridge, the 7.62×51mm NATO, Israel replaced all of the 7.92×57mm Mauser barrels on its Mauser rifles with barrels chambered for the new 7.62×51mm NATO cartridge.
It is said that the losing an eye lead to eventual developement of the large ring M98 Mausers.The small ring actions are still good actions, they just don't have the additional, beefed up design features to handle gas escaping from a pierced primer.According to the official C.I.P. Here's an interesting article about the M1916 Mausers:That said, Paul Mauser lost an eye developing his actions with it's inherent safety features. 308 Enfields since before there was a worldwide web on rec.guns and mail lists.The basic conversion as done, with the small ring Mauser action is SOUND for full 7.62 NATO. However, that is not to say any one individual rifle of the type does not have headspace problems or other flaws. However that's the case for any milsurp out there under the sun. Blued turned down bolt, 5 round magazine, fixed side support and sling swivel.Spanish Model 1916 Short Mauser, Falangist Crest, Muzzle Cap, Imp-Mkd, Blue 21 Military Bolt Action Rifle MFD 1916-1951 C&R 7.62 NATO Auction: 156234187.62 CETME is very much dimensionally similar to.
Case heasd size, case body taper and other related factors lead me to believe case head thrust will be compareable between these cartridges.The 308 Winchester is another matter. Although this lower specification is in deference to the purportedly weaker actions of the older Mauser 93 and 95 rifles which are still in circulation, this concern is misplaced, as the original ammunition developed for, and issued with, the M93 Spanish Mauser produced an average pressure of 50,370 CUP in those rifles.So this would seem to put the 7.62 X 51 in the acceptable pressure limits of the M93 action. By contrast, the American industry association SAAMI specifies a lower maximum pressure of 46,000 CUP or 51,000 psi. Pressure to certify for sale to consumers. Regulated countries every rifle cartridge combo has to be proofed at 125% of this maximum C.I.P. CUP limit is 49K while SAAMI CUP limit is 46K.It's possible that confusion in nomenclature and methods of measuring pressure lead to the current pressure limit being stated as 46K PSI.In C.I.P.
While they may have passed the testing H.P. Despite SAMCO's testing, to me, the issue is the state of metallurgy at the time these actions were forged. This about a 22% increase in pressure and as a consequence, case head thrust.
The ANSI/SAAMI voluntary pressure standards for SAAMI = 62K PSI but then they explain that this is (approximately) 52,000 CUP. 50K) need a reality check. Eventually, headspace exceeds safe limits leading to case failures.From that perspective, I would limit ammo to 7.62 X 51 pressure limits, have a headspace field gage and use it periodically.As always, take my advice for what it's worth.FIRST, those folks (see above) who keep on throwing pressure data out need to understand that SAAMI vs. Headspace may be good when new but, over time and subjected to repeated pressures beyond the metallurical limits leads to incremental locking lug setback. That could have been the cause of normannewguy's experience.I kind of relate it to the Santa Fe 1903A3 actions.
Of course, this ain't a rifle "blowing up" (even were the headspace growth thing true). There was internet chatter about how headspace may grow has been around for a good while also, but nobody has ever proved it. 308 (and yes, I would trust Swedish steel over the Spanish stuff).With full power (including commercial ammo the carbines are not very fun to shoot (but neither are FR7s or FR8s). Used Swedish 96 actions for their early (cheap) hunting rifles in the early 90s (best I recall) and these were barreled in 22-250, 243, and.
308 (and yes, I would trust Swedish steel over the Spanish stuff).Some people (see above) who continue to claim that they are so much more knowledgeable than others, and continue to express their opinion that the patently unsafe practices they continue to push could eventually going to get someone hurt.The "claim" the SAAMI makes no distinction between the 308 Winchester and the 7.62 X 51 is because SAAMI is a voluntary industry standard, it does not even address the military ammunition or military standards. Used Swedish 96 actions for their early (cheap) hunting rifles in the early 90s (best I recall) and these were barreled in 22-250, 243, and. The small ring mausers are far stronger than people realize and no less than Kimber Inc. My wife gave me one for our first anniversery (long time ago in the 80's). As far as I know, exactly zero have ever come apart.
The proof cartridge pressure is 83,000 to 89,000 PSI. This is also measured using the piezo transducer method. While not every manufacturer may load it to this level, this is the industry established maximum. The ammunition can then be used in a wide variety of firearms with no ill effects.Commercial ammunition has a SAAMI/ANSI maximum pressure of 62,000PSI. It is proofed at 67,000PSI. This standard is used to ensure better consistency round to round.
Like a lot of things in life, Murphy's Law - If something can go wrong, it will - could very well catch up with you.The gist of my post is that the military uses different standards than commercial. Usually a rifle will take some abuse before failing. Maybe you've used your rifle for a while with no ill effects. Converted 93/95 Mausers).The weaker action is a possible final piece of the 308 vs 7.62 NATO puzzle.Perhaps no single element will cause your rifle to fail.
They don't? As a matter of FACT, they DO distinguish between "5.56 Military" and. )The "claim" the SAAMI makes no distinction between the 308 Winchester and the 7.62 X 51 is because SAAMI is a voluntary industry standard, it does not even address the military ammunition or military standards.1. The moderators tend to delete such posts. Keyboard sharpshooters need to beware of posting unsafe information.
308 and 7.62 are nearly identical speaks for itself. The FACT that velocities recorded between. Likewise, a good proportion of the rounds in EXISTANCE were originally "military ammunition" anyway.
308W pressures are measured with piezoeltric transducers located over the case body. Conversely almost all factory. Thus these readings are somewhat, but not much, lower than those with the transducer located on the chamber. This done even with "contract" ammuntion. From day one all 7.62 NATO and 5.56 NATO are pressure tested at the arsenals with a gas piezoelectric transducer located at the mouth.
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