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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
270 win bullet selection
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<blockquote data-quote="Rflshootr" data-source="post: 2598038" data-attributes="member: 10284"><p>The bullet isn't what is wearing the barrel as much as it is the powder burning. Bullets will burnish a barrel. That is why the throat wears out before the rest of the barrel. It is the amount of powder burned per shot. Any given bore size will only last for a given amount of powder. The lighter bullets and hotter your load (increased velocity) decreases barrel life. As an example, with everything else being equal, a 308 Winchester will give much longer barrel life then a 300 Win Mag or a 300 Ultra Mag. So generally speaking, shooting lighter bullets faster, because we typically use more powder with the lighter bullets to get more velocity, the throat will erode faster, and barrel will last less shots. Another example is a 223 Rem vs a 22x6mm Rem. A 223 shooting 55 grain bullets will last in excess of 2000 rounds. A 22x6mm Rem shooting the same 55 grain bullets will be toast in 700-800 rounds. It's the price you pay for performance. Now, ask me how I know.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>
[QUOTE="Rflshootr, post: 2598038, member: 10284"] The bullet isn't what is wearing the barrel as much as it is the powder burning. Bullets will burnish a barrel. That is why the throat wears out before the rest of the barrel. It is the amount of powder burned per shot. Any given bore size will only last for a given amount of powder. The lighter bullets and hotter your load (increased velocity) decreases barrel life. As an example, with everything else being equal, a 308 Winchester will give much longer barrel life then a 300 Win Mag or a 300 Ultra Mag. So generally speaking, shooting lighter bullets faster, because we typically use more powder with the lighter bullets to get more velocity, the throat will erode faster, and barrel will last less shots. Another example is a 223 Rem vs a 22x6mm Rem. A 223 shooting 55 grain bullets will last in excess of 2000 rounds. A 22x6mm Rem shooting the same 55 grain bullets will be toast in 700-800 rounds. It's the price you pay for performance. Now, ask me how I know.;) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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270 win bullet selection
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