Different brands of WSM brass in an AR-10/LR308

Earnhardt

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Jul 8, 2018
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Has anyone used Lapua 300 WSM brass in an AR yet?

How did it hold up at the .200" line? Quite a bit of expansion, or no?

Since the WSM brass is .555", did it need to be re-sized by a .550" RUM or Nosler sizing die, to get the .200" line down so it could be chambered?
My Nosler and Norma brass does need to be sized down with a .550" RUM die.....the ADG I don't use in an AR anymore.

I've actually had problems with ADG WSM brass in an AR. It didn't want to size down very well, and it had shavings/flakes in the chamber area, that ultimately caused jams.

My best luck has been with Nosler believe it or not... no problem sizing down with a RUM die, and no shavings...with Norma being second

But before I drop the $ on Lapua brass, I want to see if anyone has had good luck with it in a WSM AR.

Thanks
 
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