Hello Der Ami,

Thanks for the reply.

I have about 20 Corbin swage dies and 2 presses. I know his tools are expensive, but they work very well. I will be ordering a "bump-up" die for .318 dia. After you squeeze down the bullet with a ring die, a bump-up die insures a uniform bullet with a tight jacket.

Having said that, today I was surprized to find that all the 8mm bullets I have from Speer, Hornady, and Sierra, were all undersized at .319 - .320 diameter. These might be "close enough" - so I intend to "test" them before attempting to size them down to .318 diameter.

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