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260 A.i. ?

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Unread 02-21-2008, 03:12 AM
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Join Date: Jun 2007
Location: Spokane , WA.
Posts: 186
I see that nosler is offering 260 brass now. I have never owned a "wildcat". Do you have much trouble fire forming 260 AI brass? I havent really thought about the Swede. Maybe that would be a better way to go and avoid the fire forming all together
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Unread 02-21-2008, 11:21 AM
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Join Date: Jul 2001
Posts: 1,459
Unless you are working with a center feed mag ie Savage, Accuracy int mags, you have to pay attention to shoulder angles over 30deg. Most push feed actions will cycle sharp shouldered cartridges OK. Not as smooth as conventional shoulders but enough to get the job done.

Some Controlled feed actions WILL NOT feed sharp shouldered rds no matter what you do.

For a hunting rifle or a working mag fed rifle, I would lean towards a 30deg or less shoulder cartridge and make up the case capacity needed by using a larger case. If you have a center feed mag, the AI's are a hoot.

If the chamber is cut as a true AI length, a standard case can be fireformed simply by chambering. You can shoot reg ammo in the chamber to make AI brass.

If not, you need to form a secondary shoulder before fireforming. here you must use a cream or wheat/cornmeal form of fireforming as you can't seat a bullet.

Really not a hard thing to do. I fireform all my brass no matter the chamber to max accuracy so doesn't matter to me whether it is improved or not.

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