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screwed up

barreled actionbarreled action Member Posts: 5 ✭✭
edited November 2005 in Perry Shooter Competition Shooting and Reloading Forum
I shot up my last 20 - 284win cartridges, neck sized them using a Hornady 7mm sizer,reloaded them, shot them, neck sized again with same die and setup, and this time,the necks are so big the bullets will fall down into the brass. What could I have done wrong and can the cases be saved? If not, anyone have any extra brass?






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Comments

  • HighballHighball Member Posts: 15,755
    edited November -1
    Sounds a bit odd.

    Loading very hot ? Sounds like the brass has work hardened...annealing it may bring it back. Please spray the inside case with wd-40..to kill the primers..before trying to anneal.
    I cannot imagine a chamber so large as to affect the necks...but running thru a full length sizing die may help.

    Naturally..those fancy dies with replaceably bushings will work.
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  • JustCJustC Member Posts: 16,056 ✭✭✭
    edited November -1
    sounds like the die was changed since last time? if the necks were work hardened and now will allow no neck tension, then you probably had very little neck tension to begin with. How thick are the necks? what is the outside dia of the fired round vs sized round necks?

    why chase the game when the bullet can get em from here?....
    Got Balistics?
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  • nononsensenononsense Member Posts: 10,928 ✭✭✭✭
    edited November -1
    I understand the need to "kill" live primers before working with a primed case but the best and safest way is to empty the case and shoot the empty case in a rifle, firing just the primer. Remember to clean the barrel and chamber.

    Here is an answer from The American Rifleman:

    "Killing" Primers

    Q Can you suggest something to chemically "kill" primers? I was given a lot of old, assorted, primed brass I want to deprime and turn in for scrap. I have tried killing the primers with WD-40 and have had them still work when chambered and fired. Since I want to deprime cases I can't chamber and fire, I am looking for something that will make them completely safe to knock out with a punch.

    A I checked with the CCI Chemical Department and their reply was that there is no way to "kill" unused primers. Many chemicals, oils, solvents, etc. will temporarily kill modern primer mixes, but when the primer mix dries out or the solvent evaporates, the explosive mix returns to its original sensitivity.-DAVID ANDREWS

    Copyright National Rifle Association of America May 2003
    Provided by ProQuest Information and Learning Company. All rights Reserved.



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  • temblortemblor Member Posts: 2,153 ✭✭✭✭✭
    edited November -1
    barreled action : FYI -- The october sales catalog from Natchez Shooters Supply ( www.natchezss.com)has new factory 284 winchester brass(from winchester) listed in it for sale.........1-800-251-7839 or Hornady makes 6.5-284 brass that could be necked up( although a little pricey unless your shooting target competition type stuff). Good Luck.........[8D]
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  • JustCJustC Member Posts: 16,056 ✭✭✭
    edited November -1
    Nononsense's article says the same thing I have heard from others as well. Primers are hard to kill. Even soaking in wd40 for several days from what I hear will NOT do it. Fire them empty case and get rid of the primers or pull the decapping rod out of the die and try resizing the brass that way so the primers are not touched and the expander ball is not run through the neck. That may size them down enough to hold bullets without removing the live primers.

    Measure a sized neck you have and then a loaded neck and see what the difference is. If they are the same measurement down to the .001", that means you have NO/NADA/ZIP/ZERO neck tension.

    If the brass is work hardened and will not accept sizing any more, then new brass is the only avenue. 284win brass is still available from a few manufacturers.

    why chase the game when the bullet can get em from here?....
    Got Balistics?
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  • HighballHighball Member Posts: 15,755
    edited November -1
    Perhaps I have just been lucky.I have deprimed several hundred live primers in the last 30 years. Never used any 'killer chemicals'..never had one go off.

    Wear GOOD glasses..with side shields. Long sleeves.

    Expect I will continue to do so.

    Brass that has been work-hardened can be brought back by annealing..a fairly simply procedure.
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  • WA6ATIWA6ATI Member Posts: 1 ✭✭
    edited November -1
    Amen to the saftey glasses
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  • SnellstromSnellstrom Member Posts: 1,085 ✭✭
    edited November -1
    I too, like Highball have de-primed hundreds of live primers without a single mishap. Go slow, be careful, wear safety just in case.
    My guess on the topic is that your die has worked it's way out of adjustment or something similar. I've never had brass get so "worked" that it didn't resize and hold a bullet, without showing plenty of other signs that it was "done".
    Go back and check your die.
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