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Recommended Defensive Ammo for 1911s of different sizes

Discussion in 'GATE Self-Defense Forum' started by CDR_Glock, Aug 29, 2010.

  1. CDR_Glock

    CDR_Glock

    1,260
    1
    Apr 1, 2010
    Virginia
    I have read that the ammunition that tested 45ACP was mainly in a 5" barrel. Is the shorter 1911 style pistol less effective given the lower velocities? What ammo do you recommend for a 3" versus 4" 1911? Should +P be used instead? Lastly, are 3" 1911s really less reliable than larger 1911s? If so, what do you recommend to improve reliability in a 3" 1911? I have read that changing the factory magazines for 1911s to Wilson Combat or Chip McCormick Magazines is recommended for most 1911s: is there any validity to this?

    Thank you.
     
  2. Mas Ayoob

    Mas Ayoob KoolAidAntidote Moderator

    4,704
    377
    Nov 6, 2005
    CDR, velocities do drop off significantly in .45 ACP as the barrel gets shorter. This creates a critical "velocity floor" for expansion. "Old school" conventional copper jacketed hollow points that will mushroom reliably out of a 5" are likely to deform much less from a 4 1/4" barrel, and perhaps expand not at all out of a 3" or 3.5".

    With the shorter barrel, you have two options. One is +P velocity; a 185 grain +P JHP that does 1140 foot-seconds out of a 5" will do about 1070 out of a 3.5", which is still ahead of a standard velocity 185 grain JHP out of a 5". However, recoil with the +P is palpably snappier, especially in the smaller guns.

    The other alternative is to go to a high-tech modern hollow point designed to open when fired from shorter barrels: Speer Gold Dot Short Barrel, or Winchester Ranger-T, for example.

    Because they have so much shorter a slide cycle, the 3" and 3.5" 1911 .45s are indeed more finicky than their longer counterparts, as a rule.

    best,
    Mas
     


  3. CDR_Glock

    CDR_Glock

    1,260
    1
    Apr 1, 2010
    Virginia
    Mas,

    Thanks for the recommendations. Through your experience what is the best way to make the shorter 1911s "less finicky"?
     
  4. Mas Ayoob

    Mas Ayoob KoolAidAntidote Moderator

    4,704
    377
    Nov 6, 2005
    Install a Commander-length barrel slide assembly...:supergrin:

    best,
    Mas
     
  5. CDR_Glock

    CDR_Glock

    1,260
    1
    Apr 1, 2010
    Virginia
    You are too damn funny, Man!:rofl:
     
  6. CDR_Glock

    CDR_Glock

    1,260
    1
    Apr 1, 2010
    Virginia
    So I took my Kimber Ultra Raptor out today to shoot. It had no problems feeding hollowpoints such as Golden Sabers, Corbon, WWB, or Critical Defense. I look at the barrel and it is ramped. I figure that is one feature that really helps its reliability without having to go to a longer barrel. It shot flawlessly. I was very happy with the Ultra.