I'm a mechanical engineer with 25 years of experience, if you're wondering what my "creds" are. Not to mention the gas venting in a small-ring is not nearly as good as a large-ringe if a case ruptures. This has been documented in Chilean M1895 Mausers converted to 7.62 NATO. 308 loads could cause bolt lug setback or other "slow" failure modes. The FR-8 model designation, standing for Fusil Refromando, and the serial. So I'm concerned that constant use of full. If fired at all, it was fired with non-corrosive ammo and carefully maintained. General failure theory is that the item should be able to withstand a one-time test load that is 2X the normal loading, which it did not. I think what you have is a Modelo 1916 Spanish Mauser, most likely made by Oviedo. I'm trying to help you and other readers understand a bottom-line conclusion - it's probably not a good idea to exceed the pressure a certain rifle action was designed for. In addition the serial number prefix C, identifies it as one of 5,000 rifles in that series sold to the good and fine Not to further confuse - there are a couple/few other 1893 Mauser series that did end up in South Africa and some that didnt. Understanding failure theory and modes has come a long way since then. They didn't even know what fatigue cycle damage was back in the 1890's when this action was designed. In other words, you might be up in the fatigue cycle zone - a catastrophic failure could happen in a few dozen or few hundred cycles. Even if not doing damage in the short term, you could be loading the structure up into the "margin of safety" region with full. There is more than just a one-time ultimate load to failure. What they did not test was a large number of fatigue cycles at the standard. They only tested a limited number of times (max of 4) that the action survived. I zoomed in so I could read most of the report.
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