Small rifle primer in 357 mag

Discussion in 'Handloading and Reloading' started by RSVP2RIP, Jul 22, 2009.

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  1. RSVP2RIP

    RSVP2RIP Member

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    Just looked in the Vihtavuori load data on their website and the 357 mag (and 357 maximum) data used small rifle primers, not small pistol magnum primers. Is there any issues I should worry about before I try this? This would be a great fix for me because I got caught with my pants down, no SPM primers, but lots of SR primers and N110
     
  2. rcmodel

    rcmodel Member in memoriam

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    This says Sm Pistol for .357 Mag which is correct.
    http://www.lapua.com/fileadmin/user_upload/Relodata/Handgun/.357Magnum.jpg

    This says Sm Rifle for .357 MAX which is correct.
    http://www.lapua.com/fileadmin/user_upload/Relodata/Handgun/357RemingtonMaximum.jpg

    The Cowboy Action sheet does say Sm Rifle. :what:
    http://www.lapua.com/fileadmin/user_upload/Relodata/CowboyActionShooting/.357Magnum.jpg

    I strongly suspect it's a mis-print, but I don't know!
     
    Last edited: Jul 22, 2009
  3. Larry Burchfield

    Larry Burchfield Member

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    small rifle primers

    It won't hurt a thing to use small rifle primers in your 357 loads. Most loads for the 357 calls for small pistol magnum primers. This is to help stop primer flow back and to ignite the extra powder in the 357 load. The small rifle primer will do the same thing.
    I load small rifle primers in my sons 40s&w and his 38super guns that he uses in IPSC matches.
    Larry Burchfield
    SEABEES/VIETNAM/67/68/69
    DAV
     
  4. rcmodel

    rcmodel Member in memoriam

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    Yes, but these are 4.0 grain charges in Cowboy Action loads running very low pressure he is asking about!

    Whats up with that?

    rc
     
  5. Ben Shepherd

    Ben Shepherd Member

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  6. Larry Burchfield

    Larry Burchfield Member

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    Cowboy loads

    I think that the reason they want to use it in cowboy loads is because of the small amount of powder that is being used. With that little amount of powder it will fall to the bottom of the case and is sometimes hard to ignite. Hogdens makes a powder that is susposed to help with this problem.
    Larry Burchfield
    SEABEES/VIETNAM/67/68/69
    DAV
     
  7. GP100man

    GP100man Member

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    hodgdon "clays" is the most position insensitive powder i`ve ever used.
    be careful with it it`s a very low density powder !!

    GP100man
     
  8. LTR shooter

    LTR shooter Member

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    I have used small rifle primers with VV N110 with outstanding accuracy results in my 10" Contender 357 magnum.
     
  9. Remo-99

    Remo-99 Member

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    It might not be misprint, as using a small magnum pistol primer or small rifle primer to ignite very small amounts of powder in a larger mostly empty case volume, is sometimes a remedy for ignition issues.

    The hotter flame of a rifle primer will change pressures to some degree, but in very light loads it's not an issue. Being sure your hammer has enough wack to set off the srp might be though.

    Try emailing them for comformation either way for peace of mind.
     
  10. AgentOrange

    AgentOrange Member

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    hodgdon universal clays is the BEST pistol powder ive used. i shoot it in my 45 lc, 45 acp,38s and 357 mags,32 H&R mag,ect........
     
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