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Disadvantages to porting.

Discussion in 'Handguns: Revolvers' started by MUSICALGUNNUT45, Oct 2, 2011.


    MUSICALGUNNUT45 Well-Known Member

    I was looking at gemini customs website and saw that they offered porting. Interesting idea but one instructor told me that porting a revolver is not a good idea because of the increased blast flash and reduction in muzzel velocity is any of this true or is porting worth it.
  2. Skribs

    Skribs Well-Known Member

    Porting is going to redirect the gas away from the front of the barrel and instead up it, sort of like a muzzle brake. There will be an increase in flash as a result. During a day at the range you probably won't notice, but it will affect you at night.

    I don't know enough about internal ballistics to know how it will affect the muzzle velocity, but it will probably have less effect than shortening the barrel by the amount you're porting it.

    Ports are also going to be a pain to clean, from what I've heard.
  3. rcmodel

    rcmodel Member in memoriam

    I personally wouldn't, on a SD or CCW gun especially.
    You may have to fire it up close & personal, even close to your face in a struggle.

    I don't want white hot jets of powder gas in my eyes or my clothes on fire in the middle of a fight for my life.

    I also really despise them on Magnum caliber range guns.
    They are loud enough without any extra help!

  4. CraigC

    CraigC Well-Known Member

    I wouldn't take a ported gun if it was free. Unless I planned on having the ported section cut off and a new front sight installed. In which case, I'll take all the ported 7½" FA's you want to give me. There's nothing porting accomplishes that cannot also be accomplished with properly fitting grips and practice. Without all the extra noise and blast.
  5. Crazy Carl

    Crazy Carl Well-Known Member

    I'm not for or against it, either way.

    Had a Taurus M44, 6.5", ported & HATED it. Vicious recoil.

    Shot a bud's Springfield V10 Ultra Compact. Alloy framed, ported, Officer's Model sized 1911 & loved it. Didn't notice any flash, recoil was mild & amazingly accurate.
  6. OH_Spartan

    OH_Spartan Well-Known Member

    I have a ported 44-mag with a 7.5" barrel. The ports a little of a pain to clean and I'm not sure what they give me, but that said, I don't have a strong opinion against them. I like the extra length on the barrel for accuracy's sake. I don't know what ballistics I'm gaining with the extra ported inch or losing vs. a 7.5" that isn't ported.

    That said, my 44 is my favorite gun to shoot and hunt with. Except when I'm in a black powder mood....
  7. Creature

    Creature Well-Known Member

    I once installed a compensated barrel in my Glock 22. I got a BIG surprise when I fired it from the hip!

  8. MachIVshooter

    MachIVshooter Well-Known Member

    Disadvantages: Noise, Blast

  9. sidheshooter

    sidheshooter Well-Known Member

    Disadvantages: Noise, Blast, Reduced Velocity, Redirected detritus and hot gas



    Almost 20 years ago, I had one of the short run of Taurus 605 "carry packs" that they did when Jack Weigand ran the Taurus custom shop. With 125 gr Federal or Remington jhp, the thing was loud enough to scare Beethoven, and threw enough hot gas up to scare Satan.

    It also recoiled *downward*. That was an odd sensation. My poor dad, who wore clip on, flip up plastic sunglass shades over his prescription bifocals, shot it with his flip ups in the up position, and the blast knocked the flip ups partially off. Hilarious, but not conducive to potential street use.

    Retention position shooting? Fuggedaboudit.

    Other opinions may vary on the Weigand/Gemini porting, but I sold the gun pretty quick. Don't get me wrong; the likelihood of myself eventually having Gemini do some work on a revolver is actually pretty high, but it won't be the porting, when the time comes.
  10. The Lone Haranguer

    The Lone Haranguer Well-Known Member

    The only hole needed on a handgun barrel is the one the bullet comes out of. ;)
  11. leadcounsel

    leadcounsel member

    I personally don't have a love or hate of ported. I have a ported 4" Taurus .357 mag that is a pussycat to shoot. Porting reduces the recoil a lot. I also have a ported G23 .40. In both of these I haven't fired them at night, but even during the day I see no blinding muzzle flashes that everyone claims will blind you.

    I see no huge advantage or disadvantage - so I'd pay no more for it or not for it.
  12. Ranger30-06

    Ranger30-06 Well-Known Member

    I had a ported barrel on a handgun I used to have in .45 ACP. There was a nice reduction in recoil, but there was a bit more noise and muzzle flash.
  13. Cosmoline

    Cosmoline Well-Known Member

    Porting on magnums tends to create a nasty pressure slap as well as the problems listed above. I hate it very much.
  14. gordy

    gordy Well-Known Member

    I have a magnaported 586 with a 4 inch barrel. I use it for steel plate and bowling pin shooting. There is not much lost in bullet speed with porting and the gun is no louder. As it redirects the gas up it just seems louder.
    As for speed it would be like shooting a 5 inch and then a 4 inch barrel. Not enough loss of speed to worry about.
    I have fired mine and a unported gun of the same kind and the same barrel length over a chronograph.
    It was just a small loss of speed, like less then 100 feet per second.
    Yes it can have a bit more of a build up that has to be cleaned up but I do not find it worth caring over.
    My ported 642 is a pussy cat to shoot now, even the biggest baby could fire it with +p ammo and not cry.
    To me it seems just like the S&W lock- you love them or hate them.
    Well my ported S&W 642 has a lock on it also and it works just fine.
    I would port all my hand guns as porting works. And I really like my ported hand guns.:neener:
  15. bikemutt

    bikemutt Well-Known Member

    I've got 3 Tauri, magnums and ported. They remain my favorite guns to shoot at the range. None of them are used for urban SD, they do see time in the woods. Cleaning the ported area is no problem with spray CLR.

    I would not go out of my way to port a non-ported gun though.
  16. Walkalong

    Walkalong Moderator

    I would not have one for CCW. I don't really want one even for range use, although I do have a comped gun. With hot loads it slaps you in the forehead pretty good, but it keeps the muzzle on target.
  17. Tony_the_tiger

    Tony_the_tiger Well-Known Member

    You know, Marc at Gemini has a very good reputation and the work he does, including hybra-porting, is excellent.

    Folks' opinions vary on porting as do their experiences, good or bad, with different porting methods and different gunsmiths.

    Marc from Gemini Customs was featured in American Handgunner, July/August 2009 edition, and they did an excellent write up on a ported J frame. Lots of pics too! Just scroll to page 42.


    I don't own a ported firearm, but if I ever had it done, it would be through Gemini, since they are strictly professional. Maybe you should call them up and talk to Marc about what you are looking for in a firearm and how he might be able to help you.

    MUSICALGUNNUT45 Well-Known Member

    Im not buying at the moment ( I'm flat broke) I was just curious. thanks for the info though.
  19. Snowbandit

    Snowbandit Well-Known Member

    Porting doesn't seem to effect velocity but does increase blast and flash and has little effect on recoil or muzzle rise with shorter barrels. It also seriously degrades the value of your revolver. Lots of people seem to have to go down that road at least once. I did and was greatly sorry for my expensive mistake.
  20. LensWork

    LensWork Well-Known Member

    I had a 3" S&W 629 .44 Mag with round butt finger-groove grips (Lew Horton special edition) that I had Magnaported. After firing a cylinder-full of hot handloads at an indoor range, I noticed some whites flakes on the shooting bench and my shirt; knowing I did not have a bad case of dandruff, I was puzzled. Then the RM came to me, pointed at the acoustic tiles above my head which had been toasted by the flames exiting the Magnaports. He then instructed me to put the weapon away!

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