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flattened primer (pics)

JustCJustC Member Posts: 16,056 ✭✭✭
This is not the greatest example,..but gives a start on what to look for.

100_0251.jpg

The case on the right has a primer which has started to flatten. This is not an extreme example, but does show the progression of the primer as it starts to flatten.

Notice the shiny rings above the rims? These are from the box of brass I used for the casehead seperation pictures.

why chase the game when the bullet can get em from here?....
Got Balistics?

Comments

  • FrancFFrancF Member Posts: 35,279 ✭✭✭
    edited November -1
    Almost punched through [:0] on #1 or so it looks, A bit of signs of pressure from both rings on #1 Vs #2.

    #1 Has 2 or 3 rings concave
    #2 is has a nice clean punch




    new_snipersmilie.gif
    NRA Life Endowment Member
  • JustCJustC Member Posts: 16,056 ✭✭✭
    edited November -1
    FrancF,..the left side round was fired in my rem700 classic and the round on the right was included in a deal I purchased on the net for a set of FL dies and a new box of Lapua brass all for $40[:D] The flattened primer and seperated cases were all from the original owner. I was going to use the used brass he sent me for a few rounds of load development,..and after sizing, my * practice of scrutinizing details allowed me to catch the cracks and rings. I am damn glad I didn't skip the inspection step and just throw some together so I could get to the range while taking for granted the brass was in good condition. I would have thought the original owner would have caught that and discarded them. I am suspecting that the flattened primers and casehead seperations could be showing that he had an old mauser of some sort with extreme headspace.

    why chase the game when the bullet can get em from here?....
    Got Balistics?
  • PinheadPinhead Member Posts: 1,485 ✭✭✭✭✭
    edited November -1
    JustC, you can almost bet that there is a headspace problem somewhere. It could be a mis-adjusted sizing die though instead of a rifle. I just found 400 rounds of ammo that I had loaded before I checked my cases with a headspace gage. First time in over 40 years of reloading I have made that dumb mistake(not checking the die setting after sizing the first case in a batch of reloads). Now I have 400 rounds to pull down and of course I have already re-adjusted the die--the screw on the lock ring had loosened and allowed the die to screw down farther when screwed into the RCBS Rockchucker press. I have 400 cases that are too short on the shoulder measurement but I will use the old wildcatter trick of necking up to .32 and then down to .30 again leaving a slight shoulder at .32 on the rear of the neck next to the shoulder to headspace on when I re-fire form the cases. A lot of work for a dumb slip-up.
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