What is my gun doing, and is it a problem?

What is my gun doing, and is it a problem?

This is a discussion on What is my gun doing, and is it a problem? within the General Firearm Discussion forums, part of the Related Topics category; All righty then. It's time to play that famous game, "DIAGNOSE THE BRASS." When I went shooting with my Dad in Wisconsin I discovered that ...

Page 1 of 3 123 LastLast
Results 1 to 15 of 40
  1. #1
    Senior Moderator
    Array limatunes's Avatar
    Join Date
    Feb 2007
    Location
    Iowa
    Posts
    4,246

    What is my gun doing, and is it a problem?

    All righty then. It's time to play that famous game, "DIAGNOSE THE BRASS."

    When I went shooting with my Dad in Wisconsin I discovered that about seven (at least that I found) brass casings were a little mangled when we went looking for brass. I know some brass being bent or beat up can be normal but these all looked the same.

    I went shooting yesterday and while picking up the brass I discovered more brass with the same marking on them. I decided to take it home, take pictures and see if anyone could tell me if I should be worried or not.

    The gun is not jamming, it's not doing anything negative in and of itself, but I have no idea why the brass would look like this.

    This is my Kimber Ultra CDP .45. All of the brass is from Winchester 230 grain FMJ rounds.

    Any insight?









  2. #2
    VIP Member Array ccw9mm's Avatar
    Join Date
    Jul 2006
    Location
    USA
    Posts
    26,994
    What gun, what ammo?

    If thin-walled reloads, I can see it getting fried like that, perhaps. But I have never seen the edges/lips of brass casings get chewed up like that, from any gun. Stumped.

    Looks mechanical to me, like the brass is jamming up against something, hard.
    Your best weapon is your brain. Don't leave home without it.
    Thoughts: Justifiable self defense (A.O.J.).
    Explain: How does disarming victims reduce the number of victims?
    Reason over Force: The Gun is Civilization (Marko Kloos).
    NRA, SAF, GOA, OFF, ACLDN.

  3. #3
    Senior Moderator
    Array limatunes's Avatar
    Join Date
    Feb 2007
    Location
    Iowa
    Posts
    4,246
    Quote Originally Posted by ccw9mm View Post
    What gun, what ammo?
    Ooops.. Forgot to mention. This is with my Kimber CDP in .45. The ammo I'm usually shooting is Winchester 230 grain FMJ.

  4. #4
    Senior Moderator
    Array pgrass101's Avatar
    Join Date
    Sep 2006
    Location
    Alabama
    Posts
    13,489
    It looks like the spent round is being jammed in the port as it is ejecting.

    Translation the slide in coming back into battery before the caseing has cleared the ejection port. It could be lower charge in round not fully actiutation the slide and/or stiff springs.

    How many rounds have been ran thru this pistol? Are the springs new? New type ammo?

    Warning the above can prove to be competely bogus I'm just guessing never having seen the pistol but if this is happening there should be brass residue or scraps on the ejection port.

    But going by the cases being indented I would guess this is happening. It would not cause the gun to jam because the cases are mostly ejected when the slide makes contact, which then pushes them out the rest of the way.
    “You can sway a thousand men by appealing to their prejudices quicker than you can convince one man by logic.”

    ― Robert A. Heinlein,

  5. #5
    Senior Moderator
    Array limatunes's Avatar
    Join Date
    Feb 2007
    Location
    Iowa
    Posts
    4,246
    Quote Originally Posted by pgrass101 View Post
    It looks like the spent round is being jammed in the port as it is ejecting.

    Translation the slide in coming back into battery before the caseing has cleared the ejection port. It could be lower charge in round not fully actiutation the slide and/or stiff springs.

    How many rounds have been ran thru this pistol? Are the springs new? New type ammo?

    Warning the above can prove to be competely
    bogus
    I'm just guessing never having seen the pistol but if this is happening there should be brass residue or scraps on the ejection port.
    If that's the case, wouldn't it be jamming the gun? It certainly looks like it's hitting SOMETHING, I agree, but the fact that it's not jamming is what's confusing me.

    I have put about 400 rounds through the gun. While the springs are not new as far as I know, they are in good condition. This brass is from Winchester.

  6. #6
    Senior Moderator
    Array limatunes's Avatar
    Join Date
    Feb 2007
    Location
    Iowa
    Posts
    4,246
    And, well, I think I found what the brass is hitting.




    The barrel hood. If you line the brass up it's a perfect fit. However, it's not jamming (thank goodness) but could this be a potential problem?

  7. #7
    Member Array Ten_Ring's Avatar
    Join Date
    Jun 2007
    Location
    Washington County Alabama
    Posts
    122
    I honestly can't see how it is not jamming. It does appear to be caused from short cycling or the extractor is in need of tuning. Are there "any" brass marks on the weapon around the port?
    http://www.odmp.org/

    Defensor Fortis
    Tutor et Ultor
    Aduentes Fortuna Juvat
    Libertatem Defendimus

  8. #8
    Member Array Ten_Ring's Avatar
    Join Date
    Jun 2007
    Location
    Washington County Alabama
    Posts
    122
    Sorry...crossed post.
    And yes....that can be a horrid problem. Check the extractor tension and make sure the ejector is in good shape.
    http://www.odmp.org/

    Defensor Fortis
    Tutor et Ultor
    Aduentes Fortuna Juvat
    Libertatem Defendimus

  9. #9
    Senior Moderator
    Array limatunes's Avatar
    Join Date
    Feb 2007
    Location
    Iowa
    Posts
    4,246
    Quote Originally Posted by Ten_Ring View Post
    I honestly can't see how it is not jamming. It does appear to be caused from short cycling or the extractor is in need of tunning. Are there "any" brass marks on the weapon around the port?
    No.. That's what I was looking for when I took the gun down and then I saw how perfectly the brass fits onto the barrel hood. Very strange.

  10. #10
    Senior Moderator
    Array pgrass101's Avatar
    Join Date
    Sep 2006
    Location
    Alabama
    Posts
    13,489
    Quote Originally Posted by limatunes View Post
    And, well, I think I found what the brass is hitting.




    The barrel hood. If you line the brass up it's a perfect fit. However, it's not jamming (thank goodness) but could this be a potential problem?

    I think it could lead to stove piping. See if you can get it to stove pipe or eat brass more when you limp wirst.

    Edited to add If it is the barrel hood it is probably to volient an ejection instead of to weak. This could smooth out with more rounds fired thru the pistol or the round could be hot. This is the opposite of the slide bite I mentioned above.
    “You can sway a thousand men by appealing to their prejudices quicker than you can convince one man by logic.”

    ― Robert A. Heinlein,

  11. #11
    Administrator
    Array QKShooter's Avatar
    Join Date
    Dec 2004
    Location
    Off Of The X
    Posts
    35,423

    This Is A Tell Tale Photo

    Addition: I just caught that. Your Barrel Hood? Are you sure?




    I'll bet you can match those two edge dings up to the edge of your ejection port.

    My guess is that your extracted brass is hanging up in your extractor and not being kicked out.

    Then your slide is returning to battery and slamming the cartridge case into the edge of the ejection port.

    Possible Fixes.

    Check to make sure that your ejector is not bent, damaged, or broken.

    Check to make sure that your recoil spring is not too heavy for the ammo that you're using.

    Make sure that your extractor is not tensioned too tight.
    Do you know how to do that extractor tension test?

    Put a relief cut at the bottom of your extractor.

    Install an extended ejector if your pistol is not already equipped with one.
    Liberty Over Tyranny Μολὼν λαβέ

  12. #12
    Senior Moderator
    Array limatunes's Avatar
    Join Date
    Feb 2007
    Location
    Iowa
    Posts
    4,246
    I actually TRIED to match them up to my ejection port and they don't match in any way that makes sense. In order for them to match the brass would have had to have already been on the OUTSIDE of the gun. That's the only way the brass matches the ejection port.

    My ejector looks pretty good (I think)...





    I don't know how to do the extractor tension test. How do you do that?

  13. #13
    Member Array Ten_Ring's Avatar
    Join Date
    Jun 2007
    Location
    Washington County Alabama
    Posts
    122
    http://www.odmp.org/

    Defensor Fortis
    Tutor et Ultor
    Aduentes Fortuna Juvat
    Libertatem Defendimus

  14. #14
    Senior Moderator
    Array limatunes's Avatar
    Join Date
    Feb 2007
    Location
    Iowa
    Posts
    4,246
    ALSO.. this is not being done every single time. I have a whole box of brass that looks just fine, but just a few get the crap bent out of them. This is the only casing I found that looking like this on this range visit and I put about 40 rounds through it. On my last range visit I put about 70 rounds through it and found about seven casing that looked like this.

    So, it's obviously not happening every time, but the times it does happen makes me want to scratch my head.

  15. #15
    Administrator
    Array QKShooter's Avatar
    Join Date
    Dec 2004
    Location
    Off Of The X
    Posts
    35,423
    Well, if the cartridge case is hitting your barrel hood like that then...first of all I don't know how your pistol is cycling at all.
    But, I guess it sure is.
    Liberty Over Tyranny Μολὼν λαβέ

Page 1 of 3 123 LastLast

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. XD Problem
    By Holdcard in forum General Firearm Discussion
    Replies: 8
    Last Post: April 24th, 2008, 02:24 PM
  2. S&W problem
    By Ivan in forum Defensive Carry Guns
    Replies: 6
    Last Post: November 11th, 2007, 03:19 PM
  3. UCC Problem
    By LoneRanger in forum Defensive Carry Holsters & Carry Options
    Replies: 8
    Last Post: October 11th, 2007, 12:45 PM
  4. Equipment Problem or Training Problem -- Boston PD Melts Down Pepper-pellet Guns
    By SIGguy229 in forum Law Enforcement, Military & Homeland Security Discussion
    Replies: 11
    Last Post: February 25th, 2007, 02:59 PM
  5. g19 problem
    By APBT in forum Defensive Carry Holsters & Carry Options
    Replies: 8
    Last Post: October 5th, 2006, 08:57 PM

Search tags for this page

diagnosing gun by condition of brass
,

limalife (aka limatunes)

Click on a term to search for related topics.

» Log in

User Name:

Password:

Not a member yet?
Register Now!

» DefensiveCarry Sponsors