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Which one benefit more for using +p ammo ...

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  • Barang
    CGN Contributor
    • Aug 2013
    • 12330

    Which one benefit more for using +p ammo ...

    ... full size or short barrel handgun?

    will it be overkill for short barrel and will add more recoil?
  • #2
    Carcassonne
    Veteran Member
    • Jul 2012
    • 4897

    Paul Hartnell probably has a video on the subject.

    My guess is a standard barrel will have a greater difference in velocity, but if you went by percentage difference I dont know.

    There is a website called "ballistics by the inch" that has velocities for the same cartridge at different bullet lengths. They have a few +P loads. Look up the difference yourself. My internet hub blocks that site, so I cannot tell you the answer.

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    • #3
      acaligunner
      Calguns Addict
      • Oct 2008
      • 7677

      Originally posted by Barang
      ... full size or short barrel handgun?

      will it be overkill for short barrel and will add more recoil?
      Unless there is a noticeable difference in barrel inches ( 6? vs let?s say 2? ) firearms ~ there?s not going to be that much velocity lost.

      3? and 2? barreled firearms can still have enough velocity to expand bullet, they also make ? special short barrel ? ammo that?s suppose to give you more expansion in short barrel handguns.

      If the rounds you are using ( + P or +P+ ) yes there?s going to be a bit more recoil and a bit more wear on the firearm, and there could also be more muzzle flash, the benefit would be that the bullet will expand more reliably because of the added velocity.

      If you go +P or +P+ ~ you should also know that the added velocity that helps a bullet expand also means that that bullet will open up faster and could not penetrate as much as a ? regular ? round that doesn?t expand as quickly.

      So make sure you match the bullets to your needs
      Vida Loca Homes

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      • #4
        sigstroker
        I need a LIFE!!
        • Jan 2009
        • 19645

        I haven't tried it, but based on how it is in full size guns, it's going to be a real b*tch in a little gun, plus have a ton of flash and blast.

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        • #5
          Barang
          CGN Contributor
          • Aug 2013
          • 12330

          thank you gents. it didn't even occur to me that +p will produce more flash although i should have. so i guess standard saami ammo will be good enough for home defense full size barrel.

          i'll play around with sig p239 (saami vs. +p) to see how much it affects the recoil.

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          • #6
            acaligunner
            Calguns Addict
            • Oct 2008
            • 7677

            Originally posted by Barang
            thank you gents. it didn't even occur to me that +p will produce more flash although i should have. so i guess standard saami ammo will be good enough for home defense full size barrel.

            i'll play around with sig p239 (saami vs. +p) to see how much it affects the recoil.
            If the sig 239 is in 9mm ~ federal hst 147 and the 124/7?s ( standard pressure rounds ) are gtg for sd ammo. +P rounds are gtg but not always necessary.

            Good luck.
            Vida Loca Homes

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            • #7
              Glackowitz
              Junior Member
              • Mar 2010
              • 81

              I recently bought a Springfield Armory Xd-m elite compact with a 3.8" barrel in 9mm. In talking with a guy that was at the counter also, he recommended the hornady critical duty for ccw of home defense. later found out he was retired law officer. https://www.hornady.com/ammunition/h...itical-duty#!/

              It was on sale so I bought a couple boxes, I have yet to get to the range to shoot the gun and try the ammo but did some searching and watched a few videos. Looks promising. bought a few boxes of different brands of ammo to run thru as well to see what it likes, but will be a carry gun most of the time.
              The hornady shows figures for a 4" barrel.

              Comment

              • #8
                Barang
                CGN Contributor
                • Aug 2013
                • 12330

                Originally posted by acaligunner
                If the sig 239 is in 9mm ~ federal hst 147 and the 124/7?s ( standard pressure rounds ) are gtg for sd ammo. +P rounds are gtg but not always necessary.

                Good luck.
                my wife owns sig p239 in 9mm. mine is in .40 s&w.

                good thing i only bought few of the 9mm 124+p for the wife. looks like i spent extra for nothing.

                thanks ac.

                Originally posted by Glackowitz
                I recently bought a Springfield Armory Xd-m elite compact with a 3.8" barrel in 9mm. In talking with a guy that was at the counter also, he recommended the hornady critical duty for ccw of home defense. later found out he was retired law officer. https://www.hornady.com/ammunition/h...itical-duty#!/

                It was on sale so I bought a couple boxes, I have yet to get to the range to shoot the gun and try the ammo but did some searching and watched a few videos. Looks promising. bought a few boxes of different brands of ammo to run thru as well to see what it likes, but will be a carry gun most of the time.
                The hornady shows figures for a 4" barrel.
                the videos are good in showing deep penetration through a layers of fabric into the gel.

                thanks for the link.

                Comment

                • #9
                  Regular guy
                  Senior Member
                  • Oct 2011
                  • 691

                  I use Federal HST for SD, I have a variety of rounds for different needs, I use the 147gr for my "night stand" gun, specifically for the lower penetration and noise values.I also have 124gr and 124gr+P for outdoor / longer range engagements.

                  Comment

                  • #10
                    Capybara
                    CGSSA Coordinator
                    CGN Contributor
                    • Feb 2012
                    • 15354

                    I use Speer Gold Dots as my IA does. They did well in the FBI tests. You really need to look up and study the FBI penetration tests, then you'll know which ammo to buy for SD.
                    NRA Certified Metallic Cartridge Reloading Instructor, Shotgun Instructor and Range Safety Officer

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                    • #11
                      FNGGlock
                      Senior Member
                      • Jul 2020
                      • 1289

                      This is a pretty good resource
                      Lucky Gunner tests more than 110 different 9mm, 45 ACP, 40 S&W and 380 ACP handgun self-defense ammunition loads in ballistic gel with analysis and video.


                      Looking at rated velocities, 9mm +p doesn’t make a huge difference. 45 acp seems to make a bit more difference. I did some testing a while back and posted results for 9 and 45 through different pistols/ barrel lengths.



                      Comment

                      • #12
                        KrizB
                        Senior Member
                        • Jul 2006
                        • 728

                        There is a Youtube channel called Tools&Targets and he tests out various brands of ammo on a chrono and block of gel with a full size and compact pistol to see what differences there are.


                        Just today he tested Federal .45 HST out of a Glock 30 and the standard round expanded while the +P was inconsistent.

                        Comment

                        • #13
                          Barang
                          CGN Contributor
                          • Aug 2013
                          • 12330

                          thank you for the links guys. i'll go check them out.

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                          • #14
                            hambam105
                            Calguns Addict
                            • Jan 2013
                            • 7083

                            I always thought it was a bit of overkill until I figured out there is no such thing as overdead.

                            Comment

                            • #15
                              GammaRei
                              Veteran Member
                              • May 2007
                              • 4956

                              Originally posted by acaligunner
                              Unless there is a noticeable difference in barrel inches ( 6? vs let?s say 2? ) firearms ~ there?s not going to be that much velocity lost.

                              3? and 2? barreled firearms can still have enough velocity to expand bullet, they also make ? special short barrel ? ammo that?s suppose to give you more expansion in short barrel handguns.

                              If the rounds you are using ( + P or +P+ ) yes there?s going to be a bit more recoil and a bit more wear on the firearm, and there could also be more muzzle flash, the benefit would be that the bullet will expand more reliably because of the added velocity.

                              If you go +P or +P+ ~ you should also know that the added velocity that helps a bullet expand also means that that bullet will open up faster and could not penetrate as much as a ? regular ? round that doesn?t expand as quickly.

                              So make sure you match the bullets to your needs
                              Thanks for the explanation~! I was meaning to read into this.

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