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Reloading Berger Bullets


338 edge question

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Unread 01-13-2008, 07:24 AM
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Join Date: Jul 2007
Posts: 126
I have found it is not uncommom to get .020 bullet runout when necking brass up or down. At .020 you can see the bullet wobble when you roll the case across a table. You might be surprised to see how well they will shoot like that.
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    Unread 01-13-2008, 09:45 AM
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    Location: Pennsyltucky
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    when i form my edge brass you first have to go from 30 to 338 caliber. i do this in 2 steps, the first is run it down over a 308 caliber tappered mandrel to "round" up the necks and it also pushes them out a bit. then i run them over a 338 mandrel. at this point some are very crooked, so much so that you can see it with the naked eye. i simply run them through my FL die, which is custom made by Forster with a 362 neck. they all come out very straight. can you run us through what you do to the brass in a step by step manor so we might get a better feel for what you're doing. my thoughts are if you run brass into a die without an expanding button, and i don't care if it's neck or FL, and it's coming out anywhere near as crooked as you're talking, you've got major problems with the die. again, please tell us all of your forming steps.
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    Unread 01-13-2008, 05:59 PM
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    Location: spokane wa
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    ok guys i start with rem 300 ultra brass and run it through a FL resizer with a tappered 30to338 expander ball but before i do that i lube the out side of the case with gun oil and the inside of the neck with graphite

    thanks for all the help

    michael A
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    Unread 01-13-2008, 09:31 PM
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    i think you'll get much better results if you get the right tools for the job. the decapping pin/rod/expander button is not meant to form necks with. i'm a little surprised you haven't bent it by now. Sinclare makes a tool that screws into a standard 7/8 threaded press that holds expanding mandrels for making necks perfectly round and can be used for other functions as well. you can get any size mandrel with them. 6, 7, 308, 338, you get the idea.this is excellent tool to make the necks perfect on any new brass. just go ahead and buy all the sizes that you shoot. for the edge, use the 308 first and then the 338. the other recommendation i would give is to use a different lubricant. there are several. i use imperial sizing wax. it's been around for a long time and i'm not sure anything works better. you can get it at Sinclares also. i don't think forming brass is what's meant for the lubes you're currently using.
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    Unread 01-16-2008, 12:02 PM
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    Join Date: Oct 2004
    Location: Atlanta, GA
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    is speaking the truth with absolute facts and Our mutual, 50+ years each, experiences. Follow his good advice.
    ps I grew up in the Poconos
    Member, Revolutionary War Veterans Association
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