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Old May 17, 2005, 11:48 PM   #1
Larry Kueffer
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Join Date: May 16, 2005
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7MM Mag

I've got a custom 7mm APEX MAG - MATCH GRADE. No serial # or manufacturer markings other than "Made In Belgium". Uses resized 300 H&H brass, short +/- 40 degree shoulder to neck angle and +/-.300 neck length with brass being about 2.578 long. It was made in the early to mid 1960's and last fired about 1973. Remington and Weatherby brass do not chamber. Any suggestions without my having to spend a lot of money on something I may not be able to use?
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Old May 18, 2005, 09:38 AM   #2
Mike Irwin
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You may want to get in touch with RCBS. They may have, or be able to make, loading dies for you.

You might also be able to use another die type to neck size your cases only.

In a worst case scenario, rechamber or rebarrel.
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Old May 27, 2005, 08:44 AM   #3
Ruger4570
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RCBS is certainly a good place to start as they often have some "unusual" dies in stock. The only downside is that is if they make you a die it will be a little pricey. I can't find any specs on your cartridge to see if it is easily rechambered to a Rem or WTBY. Since it is based on a 300 Mag it may only be a case of cleaning up the sholder area. You might want to make a chamber cast and see what commercial rounds are slightly longer that will clean up the existing shoulder area and still give you the proper neck length. Best of luck
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