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Rifles, Reloading, Optics, Equipment
Reloading
How do the factories load "universal" high performance cartridges??
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<blockquote data-quote="rbTanzan" data-source="post: 1981528" data-attributes="member: 53978"><p>The reason for the handloader to exercise caution is that different powder lots may burn at different rates, different cases may have different volumes up to, e.g, 3 grains, different brisance in primers, different diameter in bullets, different friction coefficients, malleability, etc. So the handloader must verify safety when any changes are made, including seating depth. </p><p></p><p>The factories, of course, have already verified the safety of the particular combination before massive production. Once the whole combination has been determined to be safe and within SAAMI spec, then they can mass produce safely, as long as they don't change anything. They know that some batch of new powder is not going to suddenly 'blow a primer' because they won't add such a powder without testing and "working up," like we do.</p><p></p><p>PS: I remember blowing a couple of primers with factory 'Czech' ammo in Africa in the 80's. The bullets had a lot of slop inside when shaken, so I suspect that they used a too fast powder to save costs and meet production goals.</p></blockquote><p></p>
[QUOTE="rbTanzan, post: 1981528, member: 53978"] The reason for the handloader to exercise caution is that different powder lots may burn at different rates, different cases may have different volumes up to, e.g, 3 grains, different brisance in primers, different diameter in bullets, different friction coefficients, malleability, etc. So the handloader must verify safety when any changes are made, including seating depth. The factories, of course, have already verified the safety of the particular combination before massive production. Once the whole combination has been determined to be safe and within SAAMI spec, then they can mass produce safely, as long as they don't change anything. They know that some batch of new powder is not going to suddenly 'blow a primer' because they won't add such a powder without testing and "working up," like we do. PS: I remember blowing a couple of primers with factory 'Czech' ammo in Africa in the 80's. The bullets had a lot of slop inside when shaken, so I suspect that they used a too fast powder to save costs and meet production goals. [/QUOTE]
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Reloading
How do the factories load "universal" high performance cartridges??
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