S&W 340 Question

S&W 340 Question

This is a discussion on S&W 340 Question within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; OK I have been posting lately about my recent purchase of an M&P 340. I have a friend with a 340 PD which has a ...

Results 1 to 8 of 8
  1. #1
    VIP Member Array jwhite75's Avatar
    Join Date
    Mar 2006
    Location
    West Virginia
    Posts
    5,319

    S&W 340 Question

    OK I have been posting lately about my recent purchase of an M&P 340. I have a friend with a 340 PD which has a titanium cylinder versus my gun's steel cylinder. His gun and the 340sc have stamped on the barrel "no less than 120 gr bullet". My gun does not have that stamp. My question is can I fire something like a 110 gr bullet in my M&P versus my friends PD model?
    Friends don't let friends be MALL NINJAS.


    I am just as nice as anyone lets me be and can be just as mean as anyone makes me. - Quoted from Terryger, New member to our forum.


  2. #2
    Moderator
    Array gasmitty's Avatar
    Join Date
    Jun 2007
    Location
    Gilbert, AZ
    Posts
    10,563
    Posted on another site:

    From page 13 of the Owners Guide:

    AMMUNITION WARNING
    ALL SCANDIUM REVOLVERS FIRING
    MAGNUM AMMUNITION
    (Example: All model 340's, 360's, 386's)

    To reduce the possibility of premature cylinder
    erosion, do NOT use Magnum loadings with
    bullet weights of less than 120 gr.

    ======
    Soooo... you might want to check your manual ("RTFM").

  3. #3
    Member Array chasbo00's Avatar
    Join Date
    Jun 2009
    Location
    Northern Virginia
    Posts
    302
    Straight from S&W…
    Ammunition Warning for Ti, Sc, PD Series Revolvers

    Before placing any of these reduced weight revolvers into service, perform the following test to determine the suitability of the ammunition you intend to use.

    At a gun range or other suitable and safe location, prepare your revolver for firing by fully loading its cylinder with the ammunition to be tested. While pointing the firearm in a safe direction, fire all but the last round. Remove the empty casings and the last loaded round from the revolver’s cylinder.

    Carefully inspect the loaded round to determine if its bullet has started to unseat (move forward) from its casing. If it has, you should not use the tested ammunition in your revolver. Choose another projectile weight or brand of ammunition and repeat this test until you find one that does not unseat under these test conditions. When you are finished, fully unload your revolver and secure it safely.

    ALL SCANDIUM REVOLVERS FIRING MAGNUM AMMUNITION
    WARNING: DO NOT USE MAGNUM® LOADINGS WITH BULLET WEIGHTS OF LESS THAN 120 GR. THIS WILL REDUCE THE POSSIBILITY OF PREMATURE CYLINDER EROSION.

    – S&W Manual of Modern-style Revolvers

  4. #4
    VIP Member Array jwhite75's Avatar
    Join Date
    Mar 2006
    Location
    West Virginia
    Posts
    5,319
    What if it is a .38 special. I found some 110 gr. .38 special low recoil hydra-shoks?
    Friends don't let friends be MALL NINJAS.


    I am just as nice as anyone lets me be and can be just as mean as anyone makes me. - Quoted from Terryger, New member to our forum.

  5. #5
    VIP Member
    Array Saber's Avatar
    Join Date
    Mar 2009
    Location
    Yuma, Arizona
    Posts
    2,591
    I love revolvers, but I'm moving away from thin-sleeved barrels and alloy frames. Granted they do serve a purpose and I own one (642-P) but this is my last. I’m on my way back to all steel variants.
    Regards,
    Last edited by Saber; August 15th, 2009 at 07:44 PM. Reason: ** CORRECTED CONTENT **
    “Monsters are real and so are ghosts. They live inside of us, and sometimes they win.”
    ~ Stephen King

  6. #6
    VIP Member Array jwhite75's Avatar
    Join Date
    Mar 2006
    Location
    West Virginia
    Posts
    5,319
    I dont think the 340 has a thin barrel....it actually looks reinforced for the .357.
    Friends don't let friends be MALL NINJAS.


    I am just as nice as anyone lets me be and can be just as mean as anyone makes me. - Quoted from Terryger, New member to our forum.

  7. #7
    VIP Member
    Array Saber's Avatar
    Join Date
    Mar 2009
    Location
    Yuma, Arizona
    Posts
    2,591
    Thanks, I actually corrected my post as I was referring to my own .38
    Regards,
    “Monsters are real and so are ghosts. They live inside of us, and sometimes they win.”
    ~ Stephen King

  8. #8
    Member Array Jay Frame's Avatar
    Join Date
    Jun 2009
    Location
    Hiram Ga
    Posts
    61
    Jeff Quinn wrote a good article about this. It is more than crimp jump. The lighter bullets are shorter, naturally. This lets gases jump past the bullet before it enters the forcing cone. This causes a molten plasma effect on the metal and the forcing cone, and the top strap as well. Both areas can begin to erode. I don't have any proof of this, but you can look it up at Gunblast.com . My 329, 44 mag, has a replaceable shield on the frame, just above the forcing cone. My 386, .357, does not need this item, as it does not have one from the factory. I really do not ever look to shoot either one enought to have concern with this problem.

Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Question from a previous question
    By NCConcealed in forum Defensive Carry Guns
    Replies: 11
    Last Post: July 4th, 2009, 11:15 PM
  2. Application question..question
    By ripntear in forum Concealed Carry Issues & Discussions
    Replies: 13
    Last Post: September 3rd, 2008, 06:23 PM

Search tags for this page

340 sc ammo

,
can you use 110 gr in m&p 340
,
jeff quinn, yuma, az
,

s&w 340 sc

,
s&w 340pd cylinder erosion
,
s&w model 340 sc specs
,

s&w model 340sc

,

s&w340 sc

,

s@w340pd

,

smith and wesson 340 sc

,
smith and wesson 340 sc bullets to use
,
ti or sc lighter smith and wesson
Click on a term to search for related topics.

» Log in

User Name:

Password:

Not a member yet?
Register Now!

» DefensiveCarry Sponsors