.32-20 Revolver Question.

Discussion in 'The Ammo & Reloading Forum' started by artabr, Dec 9, 2009.

  1. artabr

    artabr New Member

    Joined:
    Mar 3, 2008
    Messages:
    7,859
    Location:
    New Iberia, Louisiana
    Are the .32 S&W & the .32 S&W Long safe to fire in a .32-20 revolver (Colt Police Positive)?


    Art
  2. Alpo

    Alpo Well-Known Member

    Joined:
    Feb 3, 2007
    Messages:
    11,431
    Location:
    NW Florida
    It's not a good plan.

    Base dimensions of a 32/20 are .354. Same area, on a 32 S&W, is .337. That's a lot of difference. Brass will probably rupture.

    The pressures are low enough that, if the brass does not rupture, it will not hurt the gun. The bullet is the same size, so that's not a problem. But if the brass ruptures you have hot gases flowing, in a revolver chamber that is open at both ends. That, in my opinion, is asking for pain.

    32/20 dimensions
    http://stevespages.com/jpg/cd3220winchester.jpg
    32 S&W dimensions
    http://stevespages.com/jpg/cd32smithandwessonlong.jpg

    In my opinion, the answer is no.
  3. artabr

    artabr New Member

    Joined:
    Mar 3, 2008
    Messages:
    7,859
    Location:
    New Iberia, Louisiana
    I was just fixing to post that I had found my answer. I was able to dig up some old cases and I took some measurements.
    The gun was a buddy of mines dad's who has passed away. He had a bunch of .32 S&W & .32S&W Long ammo and a .32-20 gun, but no .32-20 ammo. :confused: :rolleyes: :D

    As a matter of fact, the .32 S&W round that I had gotten from him is unfired, but has had a primer strike. Gee, I wonder why. :rolleyes: :D


    Thanks for the quick reply, Alpo. ;) :)


    Art
    Last edited: Dec 9, 2009
Similar Threads
Forum Title Date
The Ammo & Reloading Forum Anyone reload for the Nagant Revolver using 32-20 brass? Nov 3, 2011
The Ammo & Reloading Forum .32-20 Apr 27, 2013
The Ammo & Reloading Forum 32-20 ammo for Colt Army Special Jan 5, 2011
The Ammo & Reloading Forum Lee guidance on COAL for 357 revolvers? Sep 13, 2014
The Ammo & Reloading Forum I.N.A. Tiger .32 Revolver Feb 27, 2014

Share This Page