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Rifles, Reloading, Optics, Equipment
Reloading
Expansion ratio: what's it mean?
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<blockquote data-quote="Natty Bumpo" data-source="post: 190903" data-attributes="member: 10106"><p>I occasionally read reference to a cartridge's expansion ratio. The gist of it is usually that the higher the ratio, the more suitable slow burning powder are. So within the same family of cartridges, I would expect a .338 Federal to prefer faster powders than a .308 Win or .260 Rem. So how exactly do they measure this ratio?</p></blockquote><p></p>
[QUOTE="Natty Bumpo, post: 190903, member: 10106"] I occasionally read reference to a cartridge's expansion ratio. The gist of it is usually that the higher the ratio, the more suitable slow burning powder are. So within the same family of cartridges, I would expect a .338 Federal to prefer faster powders than a .308 Win or .260 Rem. So how exactly do they measure this ratio? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Expansion ratio: what's it mean?
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