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The Range
Rifle & Shotgun Discussion
My AR blew up on me today...
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<blockquote data-quote="Boehlertaught" data-source="post: 2516500" data-attributes="member: 14520"><p>Good reminder...I remember reading about this too. Another issue in this area is with primer set back. Not sure how this could happen on an AR though. As the issue is with the primer pushing back on the bolt, slightly, prior to the powder being inighted or fully ignited. And if the extractor pulls the case back a little you now have an exposed butt end of the case that can blow up/off/out or what ever but the bottom line is that none of it is good in a rifle not desigend for this. This design was actully done on purpose with some of the original semi auto rifles the US Militarly looked at. Pederson made one and I think Garand and Browning played with the idea. They actually used the primers power to begin pushing back the round prior to the full power of the powder pushing the round back in a mechanical effort rather than using the gas pressure from the round like an AR uses. Well, a non-piston AR.</p></blockquote><p></p>
[QUOTE="Boehlertaught, post: 2516500, member: 14520"] Good reminder...I remember reading about this too. Another issue in this area is with primer set back. Not sure how this could happen on an AR though. As the issue is with the primer pushing back on the bolt, slightly, prior to the powder being inighted or fully ignited. And if the extractor pulls the case back a little you now have an exposed butt end of the case that can blow up/off/out or what ever but the bottom line is that none of it is good in a rifle not desigend for this. This design was actully done on purpose with some of the original semi auto rifles the US Militarly looked at. Pederson made one and I think Garand and Browning played with the idea. They actually used the primers power to begin pushing back the round prior to the full power of the powder pushing the round back in a mechanical effort rather than using the gas pressure from the round like an AR uses. Well, a non-piston AR. [/QUOTE]
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My AR blew up on me today...
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