45 acp with small pistol primers

Discussion in 'The Ammo & Reloading Forum' started by 312shooter, Feb 4, 2010.

  1. 312shooter

    312shooter Well-Known Member

    Mar 17, 2008
    Las Vegas NV
    Just started some 45 loading for a new 1911, stumbling across some brass with SP primers I was thinking about trying a load with SP magnum primers and a start charge. Has anyone tried this? I will be working up a recipe with unique and/or bullseye, 200gr plated bullets, and cci magnum SP primers.
  2. muddober

    muddober Active Member

    Sep 19, 2008
    Carson City Nevada
    I have never seen any 45 ACP case that would accept a small pistol primer, but then again I don't profess to say I have seen everything either. I have used magnum primers when I have been out of standard ones when using Unique but not Bullseye, not to say I wouldn't. I have not used standard primers nor would I when loading with the much slower powders like 2400, H110, or W296.

    Reading between the lines I think your thinking is that because they are small primers would SP magnum make up or be equal to standard large pistol primers? It is my understanding, though perhaps not correct, that both standard and magnum primers have the same amount of fuel but that the magnum primer is a bit different fuel that burns at a higher temperature.



  3. rocklinskier

    rocklinskier New Member

    Aug 16, 2009
    Is the brass you picked up Winchester? I think they use small primers in their "WinClean" ammo. Look for a "NT" stamp on the head. If so,it is a non toxic primer. You might also notice the inside of the case is very clean and shiny for spent ammo.
  4. Bindernut

    Bindernut Well-Known Member

    Oct 24, 2007
    ND, USA
    If they are NT headstamped Win brass...
    Also beware that the brass has a larger flash hole than standard. I presume it's because the non-toxic primer formula might be a little cooler burning than regular primers so it needs a larger flame port into the casing.

    if this is the case, watch out for using max or near-max loads in that brass. The theory is that with the larger flash hole you might have more primer flattening or even ruptures with high pressure loads.

    Some guys just say to scrap em, but I've used NT .45ACP brass for regular cast lead range loads using standard small primers and WW231/HP38 with no problems. I do keep them segregated from my regular brass though...makes it easier to sort out come reloading time.
  5. carver

    carver Moderator Supporting Member

    From Winchester.

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  6. bntyhntr6975

    bntyhntr6975 Member

    May 5, 2009
    Wichita, Ks.
    Very good post Carver.
  7. carver

    carver Moderator Supporting Member

    Thank you! Thank you! Thank you!:D
  8. jdon72

    jdon72 Member

    Feb 3, 2009
    There is another 45 case that uses the small primer....I just through them away. Is it cci or speer? I can not recall for sure. I found it in some used brass I bought recently.

  9. carver

    carver Moderator Supporting Member

    Remington also makes politically correct ammo, vis-à-vis, clean small pistol primers.
  10. Terry_P

    Terry_P New Member

    Mar 23, 2008
    I'd toss them out.

    Thanks Carver I remembered that they existed but forgot why.
  11. 312shooter

    312shooter Well-Known Member

    Mar 17, 2008
    Las Vegas NV
    Thanks for the input guys, here's an example of what I found. These little sheisters really foul up things, after going through several hundred pieces of brass I discovered there were over a hundred mixed in. It becomes tricky after awhile picking them out of the crowd. This was a great lesson for me as I just recently aquired a 1911 and started loading 45acp. Federal,Winchester,Speer and Remington now produce SP primed 45's. Reloading always has its curveballs......doesn't it?

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    Last edited: Feb 5, 2010
  12. JLA

    JLA Well-Known Member

    Feb 26, 2007
    Heart Of Texas
    I got some, They are too much of a hassle to pick through and prime separately so i use them to load dummy rounds for action proving... Now if I had about 500 of them id reload them and shoot them... nuttn wrong with them for reloading, flash holes are a little big, but theyd work ok for range loads id wager...
  13. woolleyworm

    woolleyworm Well-Known Member

    Feb 23, 2009
    SW Fort Worth
    Another one that can get you is the 7.62x39; it too can have two different primers in factory loads. Not many people reload this round, but if you do decide to; make sure you check!
  14. JLA

    JLA Well-Known Member

    Feb 26, 2007
    Heart Of Texas
    yeah, 7.62X39 remington brass has small rifle holes and winchester has large rifle holes. WTF, they tryin to make me pop a primer;)
  15. woolleyworm

    woolleyworm Well-Known Member

    Feb 23, 2009
    SW Fort Worth

    :D:D:D Lets just say that it's a good thing that I'm pretty gentle and when feeling anything abnormal while primining; I stop first, take a look at everything and then proceed! Trying to force a lrp into a srp hole just doesn't work too well. :D:D:D
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