Question on Primers

This is a discussion on Question on Primers within the Reloading forums, part of the Defensive Ammunition & Ballistics category; What's the difference between magnum primers and standard primers? I'm going to be loading 9mm & 40S&W. Thanks...

Results 1 to 6 of 6
Like Tree2Likes
  • 2 Post By TX expat

Thread: Question on Primers

  1. #1
    New Member Array Big_D's Avatar
    Join Date
    Feb 2012
    Location
    SW Missouri
    Posts
    10

    Question on Primers

    What's the difference between magnum primers and standard primers? I'm going to be loading 9mm & 40S&W. Thanks

  2. Remove Ads

  3. #2
    VIP Member
    Array TX expat's Avatar
    Join Date
    Jul 2009
    Location
    Kansas City
    Posts
    3,672
    You'd use regular small pistol primers for those loads. You could use magnum primers but there is no benefit to doing so and you'll want to start at minimum and work your load back up.
    bmcgilvray and jem102 like this.
    NRA Life Member

    "I don't believe gun owners have rights." - Sarah Brady

  4. #3
    VIP Member
    Array OldVet's Avatar
    Join Date
    Nov 2009
    Location
    S. Florida, north of the Miami mess, south of the Mouse trap
    Posts
    16,143
    Some powders get better ignition with magnum primers. Your reloading tables should show which loads were developed using them.
    Retired USAF E-8. Lighten up and enjoy life because:
    Paranoia strikes deep, into your heart it will creep. It starts when you're always afraid... "For What It's Worth" Buffalo Springfield

  5. #4
    New Member Array Sparky508's Avatar
    Join Date
    Jan 2013
    Location
    Graham Wa
    Posts
    9
    If magnum primers are what you can get a hold of right now, they'll be fine, but per TX expat said, you will want to start at the "bottom" and work back up. Magnum primers may cause pressure to increase vs standard primers, as they are "hotter", than standard.

  6. #5
    Senior Member Array FLSlim's Avatar
    Join Date
    Mar 2011
    Location
    FL
    Posts
    560
    The difference--mag primers burn a little hotter. You certainly don't need mag primers for the 9 and 40 (now is the time for the read your manuals reminder), but they can be used. If you do, as already stated, work up those from the start loads.
    Chose a weapon that goes bang EVERY time!

  7. #6
    Senior Member Array jem102's Avatar
    Join Date
    Sep 2007
    Location
    East TN
    Posts
    1,020
    As stated already you don't need Mag. primers for the 2 rounds in question.
    Who is John Galt?

    Sometimes there's justice, sometimes there's just us...

Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Search tags for this page

difference between standard and magnum primers

,

whats the differance between small pistol and small magnum primers

Click on a term to search for related topics.