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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
280 AI
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<blockquote data-quote="Mike Matteson" data-source="post: 2709253" data-attributes="member: 101791"><p>Are you going back to a 30/06 or something different? A 280AI case is about .1 longer than a 30/06 of other cases on that line. (25/06,270,7mm). So powder can be added to the mix. Otherwise if changing out barrels which require a reamer anyway. I ran into a problem here awhile back in COAL with my 6mm/280AI. I got 500 case in 280AI from a brass supplier here last year. A lot of case were shorter that what is shown by several thousands. </p><p>There has been talk about your chamber and where the neck of your case fits into the chamber. That case can't be to long or real problem can happen. The other is the case doesn't want or need to be to short either. Within couple of thousands or so. Cut down on problem with your lands, and carben build up. </p><p>So this time I am having a reamer built that is shorter in COAL by several thousands to get around that possible problem. </p><p>The reamer cutters should match your count on rifling. if your have a 6 land barrel, the cutters on the reamer should be 6. If 5 them it should be 5 cutter. </p><p>Otherwise have a smith use his reamer and set up for chambering your barrel. It all depend on what you want out of it. </p><p>It's a rabbit hole!</p></blockquote><p></p>
[QUOTE="Mike Matteson, post: 2709253, member: 101791"] Are you going back to a 30/06 or something different? A 280AI case is about .1 longer than a 30/06 of other cases on that line. (25/06,270,7mm). So powder can be added to the mix. Otherwise if changing out barrels which require a reamer anyway. I ran into a problem here awhile back in COAL with my 6mm/280AI. I got 500 case in 280AI from a brass supplier here last year. A lot of case were shorter that what is shown by several thousands. There has been talk about your chamber and where the neck of your case fits into the chamber. That case can't be to long or real problem can happen. The other is the case doesn't want or need to be to short either. Within couple of thousands or so. Cut down on problem with your lands, and carben build up. So this time I am having a reamer built that is shorter in COAL by several thousands to get around that possible problem. The reamer cutters should match your count on rifling. if your have a 6 land barrel, the cutters on the reamer should be 6. If 5 them it should be 5 cutter. Otherwise have a smith use his reamer and set up for chambering your barrel. It all depend on what you want out of it. It's a rabbit hole! [/QUOTE]
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280 AI
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