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Thread: Great pic's of pimers going off/ how they burn etc

  1. #1
    Member atvalaska's Avatar
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    Post Great pic's of pimers going off/ how they burn etc

    http://www.6mmbr.com/PrimerPix.html looks like u could weld with some of them.........
    WHEN IN DOUBT> THROTTLE OUT.......

  2. #2

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    Interesting... That is not exactly what I would have expected. I would have figured a more consistent pattern amongst different brands. I wonder how the actual heat transfer correlates to the visual image seen?

    That Remington 9.5 looks like an oxy/acyt torch!

  3. #3
    Member Float Pilot's Avatar
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    I wonder if the flame size really has anything to do with the pressure generated ??? I would have liked to see more magnum primers tested...

    Here are a couple primer comparison test

    6.8mm NOSLER ACCUBOND PRIMER TEST IN COLD TEMPS

    Bullet: 110 grain Nosler Accubond Boat-Tail
    Powder: 29.0 grains H-322
    Primers: Standard Small Rifle, hand seated
    Brass: SSA
    COL: 2.260 inch Lee Factory Crimp

    Fired from 16 inch STAG A5 Carbine with 1 in 10 twist. SPEC II Chamber

    TEMP: Pos 05 F or Neg 15 C


    PRIMERS:

    Federal 205,
    Velocity average: 2,483 fps 33 fps ES
    0.5 inch group, with flyer to 1.5in NO Pressure signs. Some firing pin dragging on primer face


    CCI BR-4 Bench Rest
    Velocity average: 2,554 fps 14 fps ES
    1.0 inch group, NO Pressure signs


    Winchester Small Rifle
    Velocity average: 2,463 fps 24 fps ES
    1.0 inch group, NO Pressure signs



    CCI-400 Small Rifle

    Velocity average: 2,500 fps 15 fps ES
    1.0 inch group with last shot flyer to 1.5 Flat Primers



    Remington 7 1/2 bench rest
    Velocity average: 2,329 fps 29 fps ES
    1.0inch group with last shot flyer, no pressure signs

    CCI-41 MILITARY ** Fired at 35 above zero temp.***
    Velocity average: 2,534 fps 232fps ES
    1.0 inch group FLAT PRIMERS



    6.5 x55mm Test

    different primers using a load of 46.3 grains of H-1000. I am still trying to find what is close to the original NC1220 powder.
    All loads were with Lapua brass, a Sierra 140 grain HPBT Match King bullet, and all loaded to 3.100 inches. With a very slight roll crimp.
    I fired 3 groups, of ten shots each and averaged them.

    Federal 210 Match Primer.......... CG63....2,528 fps 0.90 inch group
    ................................................m/96...2,517 fps 0.60 inch group

    CCI 34 Military Primer.............CG63..2,540 fps...1.0 inch group
    ............................................m/96..2,503 fps...1.5 inch group

    Win, WLR primer....................CG63..2,579 fps....0.40 inch group ********* GOOD LOAD
    ............................................m/96..2,514 fps....1.0 inch group
    ONLY 17 fps extreme spread on this load!

    CCI-200 Primer.......................CG63...2,560 fps...3.0 inch group
    ..............................................m/96..2,535 fps...2.0 inch group

    CCI-BR-2 Primer......................CG63...2,563 fps...1.1 inch group
    ..............................................m/96....2,547 fps...0.70 inch group
    Only a 10 fps SD on this load!
    Might have shot better but both rifles were dirty and I was in a hurry.
    Floatplane,Tailwheel and Firearms Instructor- Dragonfly Aero
    Experimental Hand-Loader, NRA Life Member
    http://site.dragonflyaero.com

  4. #4
    Member Diesel Nut's Avatar
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    Thanks ATV; those are awesome pics and certainly explain why changing primers can have such a huge effect on a load!

  5. #5
    Member tccak71's Avatar
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    Cool sight.

    Tim

  6. #6

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    I though the industrey rated them by btu and flame size. I have seen some thing to that extend some where.

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    Member Big Al's Avatar
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    You all do know that German has a web site? Has a lot more information on primes.
    "The tree of liberty must be refreshed from time to time with the blood of patriots and tryants." (Thomas Jefferson

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    Quote Originally Posted by Big Al View Post
    You all do know that German has a web site? Has a lot more information on primes.
    I googled and can't find it. Any idea as to the name of that website?

  9. #9
    Member Big Al's Avatar
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    Quote Originally Posted by AKF View Post
    I googled and can't find it. Any idea as to the name of that website?


    This is from my list of favorites, hope this link is what you want. It will require you to do a search on the information on primer testing.

    http://www.riflemansjournal.blogspot.com/


    http://forums.outdoorsdirectory.com/...721#post660721
    "The tree of liberty must be refreshed from time to time with the blood of patriots and tryants." (Thomas Jefferson

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