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Glock 21 with LW barrel will not chamber reloads

Discussion in 'General Glocking' started by 003402, Jan 10, 2011.

  1. 003402

    003402

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    JR

    This will chamber production ammo but not my reloads even though they check fine on case gauge. The fit the regular glock barrel with no issue. These are crimped. Have tried crimped and non crimped. Any pointers?

    Thanks!
     
  2. JR

    JR Moderator Millennium Member

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    I suspect you have a reloading problem. This is easy to verify. Remove the barrel from the slide. Drop a factory round into the chamber. If the factory round fits slightly lower than the top of the barrel hood you are looking good to go. If the factory round does not sit slightly below the top of the barrel hood you will need to return the barrel to LWD and we will fix it right away.

    The problem is most likely caused by an expanded or swelled case head that has not been fully resized. Ammunition that is fired from an original Glock factory barrel produces (very) expanded case heads. This expansion occurs because of the large chamber used in Glock factory barrels. Many reloaders think they are full length resizing their brass but this simply is not true. The sizer die has a beveled area located at the entrance of the die mouth. This beveled area helps guide the straight walled cartridge into the die. The case rim is held with a shell holder. The area of the cartridge that is between this beveled area and the shell holder never gets resized completely.

    If you drop your reload into a LWD barrel and the case head (rim) sits above the barrel hood this is a good indication your brass is bulged and not resized correctly. Here is 2 ways to fix this problem:

    1 Run your loads through a case gauge before shooting. Many reloaders currently use Dillon or Midway stainless case gauges however these manufactures are known to have liberal tolerances. If your Dillon or Midway case gauge works with the LWD chamber you are good to go. If not, we recommend you use the EGW case gauge. The EGW is known to run tighter tolerances. Once the reload is fired from the LWD barrel you should not have a feed problem again.

    2 You can return your barrel to Lone Wolf and include 4 or 5 dummy rounds of your reloads (no powder or primer) and we will open up the chamber to accommodate your loaded round.

    *If you are reloading 40 S&W or 10mm we recommend you use the Redding GRX push through die to remove 100% of the case budge.
     

  3. 003402

    003402

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    I will give those suggestions a try and write back.

    A few items that I left out (sorry):

    1. I have been using a dillon case guage to check on the reloads and they are checking ok.

    2. I had sent my brass to a processor that I know and part of the process is to remove the glock bulge. not sure how he does it, will have to check on it.
     
  4. JR

    JR Moderator Millennium Member

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    Dillon dies are known to be pretty liberal