Mitch Rosen   Magnum Research new   Xssights   Tommy Gun
Page 3 of 3 FirstFirst 123
Results 21 to 25 of 25

Thread: CC ammunition for CM9?

  1. #21
    Join Date
    Sep 2009
    Location
    Wet & Wild Pacific NW
    Posts
    32,470

    Default

    Well I'll be dipped in goose slobber, didn't think it would be even that much.
    In Memory of Paul "Dietrich" Stines.
    Dad: Say something nice to your cousin Shirley
    Dietrich: For a fat girl you sure don't sweat much.
    Cue sound of Head slap.

    RIP Muggsy & TMan

    "If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."

  2. #22
    Join Date
    Jun 2014
    Location
    North Carolina
    Posts
    446

    Default

    change in velocity = (Force x time)/mass
    Kahr P380 x2
    Kahr K9
    Kahr CM45
    Sig P938
    Sig P365 x2
    Sig P322
    1911 Range Officer 9mm
    M&P 9mm

  3. #23
    Join Date
    Aug 2020
    Posts
    124

    Default

    Quote Originally Posted by Bawanna View Post
    Well I'll be dipped in goose slobber, didn't think it would be even that much.
    Ha, sounds messy Bawanna LOL!

    The +P ammo picks up around 200 FPS +- over the standard pressure for a given weight which is a usable/sizable increase, which should also translate into increased and more reliable expansion for 9mm out of a 3.1" barrel IMO.

  4. #24
    Join Date
    Jun 2011
    Location
    The Free Zone
    Posts
    5,986

    Default

    Quote Originally Posted by djd100 View Post
    The delta seems to be between 50 - 100 FPS on average, with the lighter bullet weights seeing a bigger change (between 3" and 4" for 9mm).

    http://www.ballisticsbytheinch.com/9luger.html
    Not crazy about BS by the inch.
    Truth is all barrels are unique.
    There have been many cases of shorter barrels running faster that longer ones through a chronograph.
    Only way to really know is test your particular gun and ammo


    I'd be a lot more concerned about accuracy and recoil than FPS...

  5. #25
    Join Date
    Aug 2020
    Posts
    124

    Default

    Here's a vid showing gel tests for a short barrel 9mm using 115gr +P copper HP's...

    https://www.youtube.com/watch?v=LHqNA_UBggs

    ..."perfect" LOL!

    This is similar to what I use for defense in my 3.1" PM9, except 124gr.
    Last edited by djd100; 07-03-2022 at 03:47 PM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Crimsontrace   Kahr Shop   CrossBreed Holsters   Tommy Gun Shop