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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
maximum pressure rifle
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<blockquote data-quote="J E Custom" data-source="post: 1527376" data-attributes="member: 2736"><p>Cartridges are designed to SAMMI pressures for a good reason, many have been discussed already. The rifle manufactures design there actions around this pressure and add a safety factor of 100%. So if the highest rated pressure for a cartridge is 65,000 psi, most manufactures will design to 130,000 minimum but I don,t advise that you exceed the design pressure because you will be cutting into the safety margin.</p><p></p><p>If something goes wrong, you need that margin. you also cant rely on any more safety margin or what someone said or has done because of many unknown factors. I have seen many failures that produced enough pressure to blow up many fine rifles and shotguns, also pistols.</p><p>and when you run the load data it should not have exceeded double the listed load data, but it did.</p><p></p><p>The problem is that failures with firearms are normally catastrophic.</p><p>so no good can come from it. beyond the design specification, there is only problems with components and equipment.</p><p></p><p>I stopped over loading years ago when I started gunsmithing and saw first hand the damage and injuries cause by these Philosophies</p><p></p><p>Stay within SAMMI pressures so that If something does happen, you have a chance of coming out with all of your body parts.</p><p></p><p>Just my recommendation.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1527376, member: 2736"] Cartridges are designed to SAMMI pressures for a good reason, many have been discussed already. The rifle manufactures design there actions around this pressure and add a safety factor of 100%. So if the highest rated pressure for a cartridge is 65,000 psi, most manufactures will design to 130,000 minimum but I don,t advise that you exceed the design pressure because you will be cutting into the safety margin. If something goes wrong, you need that margin. you also cant rely on any more safety margin or what someone said or has done because of many unknown factors. I have seen many failures that produced enough pressure to blow up many fine rifles and shotguns, also pistols. and when you run the load data it should not have exceeded double the listed load data, but it did. The problem is that failures with firearms are normally catastrophic. so no good can come from it. beyond the design specification, there is only problems with components and equipment. I stopped over loading years ago when I started gunsmithing and saw first hand the damage and injuries cause by these Philosophies Stay within SAMMI pressures so that If something does happen, you have a chance of coming out with all of your body parts. Just my recommendation. J E CUSTOM [/QUOTE]
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