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Rifles, Reloading, Optics, Equipment
Reloading
Chamber pressures
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<blockquote data-quote="boomtube" data-source="post: 749692" data-attributes="member: 9215"><p>Seems they don't agree:</p><p> </p><p><em>"Seating the bullet deeper to allow more travel before it takes the rifling, as in these next two illustrations, permits the bullet to get a good running start (C). Powder gases quickly have more room in which to expand without resistance, and their pressure thus never reaches the "normal" level. Nor does the velocity; with the same powder charge it only comes to 3400 fps (D)"</em></p><p> </p><p>In other words, Horandy says seating deeper, within reason, lowers peak pressure in rifles. And they DO know what they're talking about!</p></blockquote><p></p>
[QUOTE="boomtube, post: 749692, member: 9215"] Seems they don't agree: [I]"Seating the bullet deeper to allow more travel before it takes the rifling, as in these next two illustrations, permits the bullet to get a good running start (C). Powder gases quickly have more room in which to expand without resistance, and their pressure thus never reaches the "normal" level. Nor does the velocity; with the same powder charge it only comes to 3400 fps (D)"[/I] In other words, Horandy says seating deeper, within reason, lowers peak pressure in rifles. And they DO know what they're talking about! [/QUOTE]
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