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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
280 RCBS Imp. Help
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<blockquote data-quote="nicholasjohn" data-source="post: 1663557" data-attributes="member: 109113"><p>Having read all these posts, I think that if I was in your shoes, I'd stick with what you've already got - and not spend a bunch of money until you know if you've got any problems. It may work just fine to fireform factory loads as it is. </p><p></p><p>Whomever advised you to get the headspace checked has the best first step - you <strong>definitely</strong> need to make sure that you're not shooting an unsafe rifle. Read up on how Ackley sets up the headspace - it's based on a crush fit at the neck/shoulder juncture. Yours may be set up that way, or it may be that it's based on the same datum ( and headspace gauges ) as the standard cartridge. Find out what you've got, and go with it. Hopefully you'll find that you can just fireform factory cartridges, and then hand load them. If you really don't want to handload right now, then the 280 Ackley Improved loaded ammunition is all that is available to you, so you'll need to re-chamber for that. I've read a lot of posts on this forum about the differences between the factory cartridge and its SAAMI specs being different from Ackley's original design of this cartridge. You might want to search this forum for those posts and see what some well-experienced shooters have written on that. If you're going to re-chamber, make sure that it's done to the SAAMI specs, so that factory ammo will work for you. You certainly don't need to re-chamber twice. </p><p></p><p>It may be that you'll need to have the barrel set back a turn or two to clean up what's left of the old chamber. If this is how it has to be done, the barrel contour is going to leave a gap between the new position of the barrel after re-cambering, but you will be able to shoot factory loads in your rifle. It may look a little funny to you, but I will be safe to shoot.</p><p></p><p>There are things that can be done at the loading bench if you find out that factory loaded 280 Remington cartridges won't work in your chamber as it is now. These things are pretty tedious, and if you run into that you might be better off to bite the bullet early and just re-chamber to 280 AI and skip the hassles. I went through the whole process with an incorrectly-chambered 30-06 Ackley years ago, and it was a real education. While I learned a lot in the process, it was very frustrating at the time.</p></blockquote><p></p>
[QUOTE="nicholasjohn, post: 1663557, member: 109113"] Having read all these posts, I think that if I was in your shoes, I'd stick with what you've already got - and not spend a bunch of money until you know if you've got any problems. It may work just fine to fireform factory loads as it is. Whomever advised you to get the headspace checked has the best first step - you [B]definitely[/B] need to make sure that you're not shooting an unsafe rifle. Read up on how Ackley sets up the headspace - it's based on a crush fit at the neck/shoulder juncture. Yours may be set up that way, or it may be that it's based on the same datum ( and headspace gauges ) as the standard cartridge. Find out what you've got, and go with it. Hopefully you'll find that you can just fireform factory cartridges, and then hand load them. If you really don't want to handload right now, then the 280 Ackley Improved loaded ammunition is all that is available to you, so you'll need to re-chamber for that. I've read a lot of posts on this forum about the differences between the factory cartridge and its SAAMI specs being different from Ackley's original design of this cartridge. You might want to search this forum for those posts and see what some well-experienced shooters have written on that. If you're going to re-chamber, make sure that it's done to the SAAMI specs, so that factory ammo will work for you. You certainly don't need to re-chamber twice. It may be that you'll need to have the barrel set back a turn or two to clean up what's left of the old chamber. If this is how it has to be done, the barrel contour is going to leave a gap between the new position of the barrel after re-cambering, but you will be able to shoot factory loads in your rifle. It may look a little funny to you, but I will be safe to shoot. There are things that can be done at the loading bench if you find out that factory loaded 280 Remington cartridges won't work in your chamber as it is now. These things are pretty tedious, and if you run into that you might be better off to bite the bullet early and just re-chamber to 280 AI and skip the hassles. I went through the whole process with an incorrectly-chambered 30-06 Ackley years ago, and it was a real education. While I learned a lot in the process, it was very frustrating at the time. [/QUOTE]
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