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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What creates a strong cartridge?
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<blockquote data-quote="Greyfox" data-source="post: 752616" data-attributes="member: 10291"><p>I responded previously on this thread with the standard answer of basic design, quality control etc. While this is certainly important and everyone is pretty much saying the same thing, I have thought more about it. Given those basics, after many years of working with lots of different rounds, the strongest, longest lasting cartridges have been the ones that give me the required accuracy, velocity, and distance, when my load is built to work well within the maximum SAMMI pressure of the cartridge, and, importantly, the rifle chamber has the correct dimensions. I have had 308's and 223's that a 100 box of Lapua brass gets me over 1500 rounds down the barrel with maybe a few annealings required. One the other hand, I have just stretched slightly the limits of the same cartridges and they fall apart in a few reloads with case head separation, loose primer pockets, etc. and the initial pressure signs were not always obvious. I have a buddy that uses one box Lapua of brass per barrel with his 6BR. Overall, I think that given the basic design and manufacturing process is sound, the specific load and rifle combination is what creates a strong cartridge.IMHO.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 752616, member: 10291"] I responded previously on this thread with the standard answer of basic design, quality control etc. While this is certainly important and everyone is pretty much saying the same thing, I have thought more about it. Given those basics, after many years of working with lots of different rounds, the strongest, longest lasting cartridges have been the ones that give me the required accuracy, velocity, and distance, when my load is built to work well within the maximum SAMMI pressure of the cartridge, and, importantly, the rifle chamber has the correct dimensions. I have had 308's and 223's that a 100 box of Lapua brass gets me over 1500 rounds down the barrel with maybe a few annealings required. One the other hand, I have just stretched slightly the limits of the same cartridges and they fall apart in a few reloads with case head separation, loose primer pockets, etc. and the initial pressure signs were not always obvious. I have a buddy that uses one box Lapua of brass per barrel with his 6BR. Overall, I think that given the basic design and manufacturing process is sound, the specific load and rifle combination is what creates a strong cartridge.IMHO. [/QUOTE]
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What creates a strong cartridge?
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