Quantcast
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

357mag primers

Discussion in 'Handloading and Reloading' started by reloadn, Jul 18, 2009.

Thread Status:
Not open for further replies.
  1. reloadn

    reloadn Member

    Joined:
    Feb 14, 2009
    Messages:
    36
    Location:
    Kentucky
    I have been reloading 9mm, 45acp and 38spl for a while now and now decided to load some 357mag. My question is will small pistol primers work or do I need small pistol mag.
     
  2. rcmodel

    rcmodel Member in memoriam

    Joined:
    Sep 17, 2007
    Messages:
    59,082
    Location:
    Eastern KS
    Unless you are using heavy charges of ball powder like H110 or WW296 or something, regular Sm Pistol primers are fine.

    rc
     
  3. reloadn

    reloadn Member

    Joined:
    Feb 14, 2009
    Messages:
    36
    Location:
    Kentucky
    I was going to use 296 but what if I used Bullseye
     
  4. rcmodel

    rcmodel Member in memoriam

    Joined:
    Sep 17, 2007
    Messages:
    59,082
    Location:
    Eastern KS
    What I said.

    Only the slow burning ball powders require a mag primer.

    Bullseye is neither slow burning or a ball powder.

    But neither is it a good .357 Mag powder if you want full power & velocity.
    It's as far removed from WW296 as you can get for magnum loads.

    rc
     
  5. marineshooter

    marineshooter Member

    Joined:
    May 28, 2009
    Messages:
    63
    Location:
    Barberton, Ohio
    It all depends on what book you are reading. some say no and some say yes to magnums. i have used both with no problems. I shoot 158 gr swc in the middle of charge weights. however i would be careful if you are at the max and go with magnums. lee 2nd edition says standard primers and Lyman 49 th says magnums. Hodgdon web site also says to use magnums. ?????
     
  6. rcmodel

    rcmodel Member in memoriam

    Joined:
    Sep 17, 2007
    Messages:
    59,082
    Location:
    Eastern KS
    Consider if you will that the .357 Magnum was loaded for the first 40 years or so of it's existence with standard primers & 2400 powder because Magnum primers had not been invented yet.

    Mag primers are not needed, and may in fact give erratic results with easily ignited flake type powders like 2400.

    rc
     
  7. Walkalong

    Walkalong Moderator

    Joined:
    Nov 20, 2006
    Messages:
    46,707
    Location:
    Alabama
    Mag primers for W296/H110 in .357, but no other powder needs them as far as I know.
     
  8. The Bushmaster

    The Bushmaster Member

    Joined:
    Jan 29, 2005
    Messages:
    7,849
    Location:
    Ava, Missouri
    Unless it is EXTREMELY cold where you are. And when I say EXTREMELY cold I mean below 0*....
     
  9. ArchAngelCD

    ArchAngelCD Member

    Joined:
    Nov 25, 2006
    Messages:
    22,095
    Location:
    Northeast PA, USA
    I agree with the advice give by "rcmodel" and "Walkalong" is mostly correct except I think Lil'Gun delivers better results with a Magnum primer too. I also use a Magnum primer with HS-6 but it's also a ball powder that's hard to ignite.
     
  10. Walkalong

    Walkalong Moderator

    Joined:
    Nov 20, 2006
    Messages:
    46,707
    Location:
    Alabama
    I'll have to keep that in mind when I try Lil' Gun in .44 Mag. Only used it in .22 Hornet thus far.
     
  11. ArchAngelCD

    ArchAngelCD Member

    Joined:
    Nov 25, 2006
    Messages:
    22,095
    Location:
    Northeast PA, USA
    AC, I'm not 100% sure but I am close to 99% sure Lil'Gun is a ball powder. I have been using only Magnum primers when loading .357 Magnum rounds and a 180gr bullet.
     
  12. fourdollarbill

    fourdollarbill Member

    Joined:
    Nov 24, 2008
    Messages:
    545
    Location:
    Ohio
    In 357 mag I use...
    Bullseye - reg primer
    2400 - reg primer
    H110 - mag primer
    lil-gun - mag primer

    The bullseye is loaded med/light for plinking. The 2400 is loaded medium for plinking and longer range target. H110 is nice for a variaty of size jacketed bullets high speed uses. Lil-gun is the all time 180 grain heavy hitter and very fun to blast water filled milk jugs.
    I never used a smaller bullet with Lil-gun but I'm waiting to see a post from ArchAngelCD as he mentioned he may try a 158 grain with it sometime.:D He has a good grip on 357 mag with alot of good info.
     
  13. Marlin 45 carbine

    Marlin 45 carbine Member

    Joined:
    Jul 15, 2007
    Messages:
    2,477
    Location:
    South-Western North Carolina
    good post - I'm a newbie to .357 mag loading and appreciate the info.
    all I've loaded so far has been 'fourdollarbill's' good 158gr cast slugs over moderate charge of Red Dot w/fine results.
     
  14. Walkalong

    Walkalong Moderator

    Joined:
    Nov 20, 2006
    Messages:
    46,707
    Location:
    Alabama
    I'm 99.99% sure it is. Not as fine grained as H110/W296 or AA # 9. I have been quite happy with AA # 9 and lead or jacketed bullets over the years, but am intrigued by Lil' Guns ability to achieve the same velocities with less pressure in some applications. It has to be good for case life with those fragile Hornet cases, and it couldn't hurt in .44 Mag. It may prove especially good with the Speer 270 Gr Gold Dot, which I currently load with W296. I am almost out of it though. I don't load any top end .357, but some experimentation with Lil' Gun and really heavy bullets in .357 might make a good project someday.
     
  15. ArchAngelCD

    ArchAngelCD Member

    Joined:
    Nov 25, 2006
    Messages:
    22,095
    Location:
    Northeast PA, USA
    Sorry 4$bill, I haven't tried that yet but I promise I'll post a range report when I do, chrono data and all.
    Also, thanks for the complement but there are others here with just as good and better information that I have. I do appreciate the kind words...
     
  16. Sport45

    Sport45 Member

    Joined:
    Mar 5, 2004
    Messages:
    2,783
    Location:
    Houston, TX
    I'll often size and prime brass long before I use it. With that in mind all my .357 brass is primed with spm primers. That way I can use H110, Unique, W231 or anything else and don't have to segregate primed brass. I stay away from max loads with the fast powder. If I want magnum performance I use the slower powders.
     
  17. ArchAngelCD

    ArchAngelCD Member

    Joined:
    Nov 25, 2006
    Messages:
    22,095
    Location:
    Northeast PA, USA
    Sport45,
    I don't do that because I get poor results and erratic performance with Magnum primers when using W231, 2400 and a few other easy to ignite powders.
     
  18. zxcvbob

    zxcvbob Member

    Joined:
    Sep 15, 2007
    Messages:
    5,061
    Location:
    S.E. Minnesota
    Bullseye is a fine powder for .357 cast bullet loads. (Herco is better, and I really like AA#7.) Use regular SP primers with any of them -- unless all you have is magnum primers or small rifle. 296 is good only if you follow the recipe exactly and use hot primers and a good bullet crimp (if you can do that, it gives outstanding performance)
     
  19. MikeS.

    MikeS. Member

    Joined:
    Sep 14, 2004
    Messages:
    407
    Location:
    Mid-Atlantic region
    Reloadn, I like 4.0 of Bullseye with a 158grn LSWC and a SP primer. Nice lite target plinking load for my .357s.
     
Thread Status:
Not open for further replies.

Share This Page