Quantcast
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Ported 2.5" .357Mag = .38SPL +P in a non-ported?

Discussion in 'Handguns: Revolvers' started by twoblink, Jul 18, 2003.

Thread Status:
Not open for further replies.
  1. twoblink

    twoblink Member

    Joined:
    Dec 22, 2002
    Messages:
    3,736
    Location:
    Houston, Texas
    I was looking at how much piggy bank damage something close to a Weigand treatment for an SP101 would be; and I saw that they usually do some porting..

    My question then would be; does a .38SPL+P out of an un-ported come close to a .357Mag out of a ported gun?

    Does the porting effect the velocity as much as the wive's tales claim?
     
  2. Jim March

    Jim March Member

    Joined:
    Dec 24, 2002
    Messages:
    8,732
    Location:
    SF Bay Area
    The Weigand style LOOKS like it would reduce velocity more than, say, Taurus-style.

    On a Taurus, there's a ported bit at the end of the barrel, usually about half an inch long. Basically, you lose about half an inch worth of velocity - so a 2.5" Taurus will perform like a 2" non-port. Which isn't bad, if you want the recoil control.

    The Weigand type works differently. I would ask him for velocity test data, personally.
     
  3. Tamara

    Tamara Senior Member

    Joined:
    Dec 21, 2002
    Messages:
    9,325
    Location:
    Hoosieropolis
    A 125gr .357 Magnum bullet is moving faster at the forcing cone than a comparable +P .38 Special load is out of a four-inch barrel.
     
  4. PCRCCW

    PCRCCW Member

    Joined:
    Dec 26, 2002
    Messages:
    2,860
    Location:
    The Ice Cream Capitol of the World!
    Jacks porting suffers no more than 3-5% velocity loss when compared to a non ported gun. Shoot well
     
  5. stans

    stans Member

    Joined:
    Dec 27, 2002
    Messages:
    2,426
    Location:
    central Virginia
    I don't care for porting on a defensive handgun. Something about the possibility of hot gases and debris being directed towards any part of my body just gives me the heebie-jeebies.
     
  6. Mark IV Series 80

    Mark IV Series 80 Member

    Joined:
    Dec 28, 2002
    Messages:
    207
    ..... Not to mention, that you would be night-blinded and possibly temporarily deaf after the first shot in darkness.
     
  7. Tamara

    Tamara Senior Member

    Joined:
    Dec 21, 2002
    Messages:
    9,325
    Location:
    Hoosieropolis
    Mark IV Series 80,

    Just out of curiosity, how did you determine that? (None of the ported guns I've shot in darkness blinded me, and a 2.5" .357 is going to deafen you anyway, porting or no...)
     
  8. Mark IV Series 80

    Mark IV Series 80 Member

    Joined:
    Dec 28, 2002
    Messages:
    207
    Hi Tamara,

    I've never fired a ported revolver.

    I extrapolated from the fireball I got out of an unported, 2.5 inch, .357 Magnum with hot 125 grain loads (I believe they were Remington).

    I assumed (You know what happens when you ASSUME!) that some of that fireball would come out of the ports, and more into the line-of-sight.

    Also, I have heard others comment on this:

    1623: Gun for home defense!
    11/17/02-8:07 AM Posted by: ThomasJ

    Well Sir My wife is a small city girl also, and trust me a 12 guage toating women she ain't,also a shotgun can be easily taken away form someone in close quarters, and there are mechanisms someone under attack has to remeber, like safeties and pumping the shotgun but I believe the 605 is a great idea, although the ported version is quite scary at night, flames actualy shoot from the barrel at two angels, any revolver nowadays are good choices, a .357 is an excellent idea also, putting .38's in a .357 tames it quite abit, especialy for a female, as far as the ported version, well I think you should rent one first , My ported rossi is nice to shoot, in the day, but at night it actualy blinds you, and the noise level is defening , especilly in like a closed room or house,One thing pple forget when it comes to home defense pistols.......... they travel threw many walls which can cause harm to innocnet neighbors, so a well expanding .38 hollow point in a .357 revolver is a great idea nezerlove also take a good look at the Ruger sp101 with a 3 inch barrel, it is much better quality than the taurus have a nice day, and stay with stainless too, they hold there value and never rust with an ocasional quick wipe down with an oily rag, If I were going to use a shotgun for home defense I'd use an auto loader 20 guage, to hell with the sound of a pump, someone is crazy enough to be in my house, they are crazy enough not to care about a crack of the slide of a pump !!!!
     
  9. C.R.Sam

    C.R.Sam Moderator Emeritus

    Joined:
    Dec 19, 2002
    Messages:
    2,632
    Location:
    Chino Valley, AZ., USA
    "A 125gr .357 Magnum bullet is moving faster at the forcing cone than a comparable +P .38 Special load is out of a four-inch barrel."...Tamara.

    Yup.

    Sam
     
  10. Mark IV Series 80

    Mark IV Series 80 Member

    Joined:
    Dec 28, 2002
    Messages:
    207
    Welome back C.R.Sam!

    Your wit and wisdom were missed here on The High Road.
     
  11. Tamara

    Tamara Senior Member

    Joined:
    Dec 21, 2002
    Messages:
    9,325
    Location:
    Hoosieropolis
    Now, I ain't sayin' that's like having divine authority weigh in on your side, but it's pretty durn close. ;) :D


    Good to see you back, C.R.Sam! :cool:
     
Thread Status:
Not open for further replies.

Share This Page