Small pistol

Discussion in 'Ammunition & Reloading' started by Shooter girl, Dec 8, 2009.

  1. Shooter girl

    Shooter girl New Member

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    I have been shooting a bit more .357 mag recently, but I just ran out of small pistol magnum primers, and have a ton of small pistol. I have been told that you can use a magnum primer in lieu of SP but just reduce the powder charge, can the same be said the other way round but increase the amount of powder?
     
  2. cpttango30

    cpttango30 New Member

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    I would be careful doing that.

    Load 1 with the load you go with but use a regular pistol primer see what happens.


    Look I am not liable for any thing that happens to you or anyone else around or equipment or anything.
     

  3. Shooter girl

    Shooter girl New Member

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    Disclaimer noted.

    What I was told by one of the guys at the range when I bought SP mag on accident when I first started loading was it would be ok to use in a normal .38 SPC load if I dump off between .1 and .2 gr. I did that until I started shooting .357 mag.

    I will try it out the other way round and let you guys know how it went. But I will be light loading them a little bit. Unless I hear different.
     
  4. TXnorton

    TXnorton New Member

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    I have always used (regular) small pistol primers for my .357 Magnum loads. I generally load close to, but a bit under, the published maximum powder loads. It has never been a problem.
     
  5. robocop10mm

    robocop10mm Lifetime Supporting Member Lifetime Supporter

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    It depends on the powder you are using and to a lesser degree, the loading. For proper ignition, some powders NEED a mag primer (H110, W-296 perhaps 4227). Many perfectly useable powders like Blue Dot and Unique will do just fine with a standard primer.

    The one area to be careful is with max or near max loads. It is possible the thinner cups on the std primers may give way on a really hot load.
     
  6. BILLYBOB44

    BILLYBOB44 Active Member

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    Disclaimer NOTED!!!

    With the shortage of Small Pistol, I have loaded several loads with Small RIFLE primers(REM. 6 1/2) with success. Not to tell you to do that, but it works for me. I have loaded-9MM,.38Spl.,.357Mag.,and .40 S&W with Small RIFLE primers, with no noticeable difference. Back off your powder a little.:)
     
  7. Shooter girl

    Shooter girl New Member

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    Ok thanks much. Ive been using Win 231 for .45ACP .38 SPC and .357 mag.
     
  8. Bigcat_hunter

    Bigcat_hunter New Member

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    Lee's book recommends not using magnum primers.
     
  9. Shooter girl

    Shooter girl New Member

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    Lee's book recommends not using mag primers on mag loads?
     
  10. robocop10mm

    robocop10mm Lifetime Supporting Member Lifetime Supporter

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    Magnum primers are less consistent. The same load with mag and standard primers will show a wider spread of velocity with the mag primers.
    I only use mag primers for true mag loads with powders that insist on the hotter ignition. 231 in .357 mag, Max load. standard primer.

    You can sub in small rifle primers, but they are no easier to find. Small rifle primers are very comparable to mag primers with regard to cup thickness and flame temp BUT that does not mean you can sub small pistol mag primers for small rifle primers in rifle loads. The cup thickness is "comparable" not the same.

    A lot of IPSC Open class shooters use samll rifle primers for major power factor .38 super loads (and .38 TJ, .38 super comp, 9X21, 9X23, .356TSW, .355 super, etc) They are pushing pressures way beyond the SAAMI specs for the super.
     
  11. BILLYBOB44

    BILLYBOB44 Active Member

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    Sub primers (Rifle in place of Pistol)

    Your right Robo on primer shortages, but I was able to get a 5K brick of the Rem. 6 1/2's from my local gun club for $130.00. Still have around 1500 Win. Sm. Pistol primers, to use for my light loads-.32acp.,.380+light .38spl. wad cutters. Been looking hard for Sm.Pistol for awhile. Will volume buy, if I find them at a FAIR price!!:confused::eek:
     
  12. Shooter girl

    Shooter girl New Member

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    Thanks Robo, I will have to read through the Lee book again. I must have missed some stuff.
     
  13. robocop10mm

    robocop10mm Lifetime Supporting Member Lifetime Supporter

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    Some stuff you will not find in print in a book from Lee or Lyman or any other such company. Their lawyers would give birth to an entire herd of cattle. They are going to toe the liability line. Small pistol in pistols small rifle in rifles etc. Unless a particular combination has been tested, re-tested and submitted to HP White laboratory for additional testing they are not going to publish it.

    To me there is a big difference between published "safe" data, unpublished "safe" data and just plain stupid. I have data I have worked up that I trust in my guns with me on the trigger. I have seen data that was irresponsible at best. Intentional double charge of "X" powder for a manstopper .38 spl round using an inverted hollow base wad cutter. "Guaranteed to blow the balls of a charging rhino at 30 paces."

    IMHO if you cannot fill a thimble with your common sense, you have no business around firearms, much less reloading equipment.