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  • 1 Post By Kiwi Greg

Thread: PMC Brass 222

  1. 11-10-2019, 02:17 PM #1
    Ryan_Songhurst
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    PMC Brass 222

    I recently bought some once fire PMC brass and today I started doing some load development for my 222 with it and had misfires on every round due to light primer strike. I noticed that the primers seem to have seated really deep on the PMC brass which is what is causing the light strikes. I have a whole heap of PPU brass that came with the rifle, switched to that and the problem disappeared and primers seat nice and flush.
    Has anyone else had this problem? Are they designed for a different primer?
    270 is a harmonic divisor number[1]
    270 is the fourth number that is divisible by its average integer divisor[2]
    270 is a practical number, by the second definition
    The sum of the coprime counts for the first 29 integers is 270
    270 is a sparsely totient number, the largest integer with 72 as its totient
    Given 6 elements, there are 270 square permutations[3]
    10! has 270 divisors
    270 is the smallest positive integer that has divisors ending by digits 1, 2, …, 9.
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  3. 11-10-2019, 02:18 PM #2
    Ryan_Songhurst
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    Using CCI BR4 small rifle primers
    270 is a harmonic divisor number[1]
    270 is the fourth number that is divisible by its average integer divisor[2]
    270 is a practical number, by the second definition
    The sum of the coprime counts for the first 29 integers is 270
    270 is a sparsely totient number, the largest integer with 72 as its totient
    Given 6 elements, there are 270 square permutations[3]
    10! has 270 divisors
    270 is the smallest positive integer that has divisors ending by digits 1, 2, …, 9.
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  4. 11-10-2019, 02:44 PM #3
    johnd
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    Seems strange, I use cci 400 primers in pmc .222 brass no issues.
    Maybe not all PMC has the same depth?
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  5. 11-10-2019, 05:06 PM #4
    Kiwi Greg
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    My guess is the primers are a little low, the shoulder/headspace a little short & the primers a little hard, added together = misfires...

    Fed 205s maybe your friend in this instance, typically the firing pin only has to look at a Federal primer for it to go bang, compared to CCI...
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    Overkill is underated !!!

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