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Thread: Is a 5" .45 R1 "rated" for +P?

  1. #1
    Join Date
    25th January 2012
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    Is a 5" .45 R1 "rated" for +P?

    I have a Remington R1 5" bbl .45 caliber. I am looking to upgrade to self-defense ammo and while reading an article the author stated "as long as your .45 is 'rated' for +P ammo".

    Is the Remington R1 .45 rated for +P and if so, how can I tell?

    I need to answer the same question for my Kimber, Pro Carry II 4" bbl .45's. but I assume, unless whoever answers this question can answer that one too, I need to post that in the Kimber section of this forum.

    I do not wish to do any damage to my firearms or void their warranties.

  2. #2
    Join Date
    25th September 2011
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    According to https://www.remington.com/support/help-center :Handguns:"Can I shoot + P ammunition in my Remington R1 1911?"
    No, the Remington R1 is chambered to standard SAMMI specifications and is not rated for +P ammunition.
    Likes (1) :
    Ric4509 (7th August 2018)


  3. #3
    Join Date
    25th September 2011
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    For your Kimber https://www.kimberamerica.com/media/...al_11-2015.pdf
    page 43
    Do not use +P+ ammunition because
    its pressures could exceed maximums established by the Sporting Arms and Ammunition Manufacturers’ Institute, Inc. of the United States (SAAMI) and result in an unsafe condition that may cause serious injury or property damage.

  4. #4
    Join Date
    25th January 2012
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    Thank you Pyrenean for the info on both pistols. I did note that Kimber said I should never use +P+ ammo but it does also say that the Kimbers will fire the +P ammo as long as it is not used often.

    Page 48 says - "Although this Kimber firearm is capable
    of functioning with +P ammunition in the
    appropriate caliber for the firearm,
    a steady diet of +P ammunition may affect
    the wear characteristics, shorten the
    life and endurance of your firearm, and
    necessitate more frequent maintenance and
    replacement of parts.
    Do not use +P+ ammunition."

    Thank you for finding the information for me. I only wanted to use the +P and not the +P+, and only for self-defense so, since I carry the Kimbers I will use the +P in them and not shoot it regularly. I will not use the +P in the Remington, for home defense, at all thanks to your Remington link.

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