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Dillon 550B and the Glock "bulge" 40 s&w

Discussion in 'Reloading' started by Backfire_Tx, Nov 22, 2012.

  1. Backfire_Tx


    Apr 21, 2012
    North Texas
    I want to be able to shoot more often and have researched re-loaders. Dillon 550B seems a good choice. I will reload .40 s&w's. I have a question. Online i read a phenomena where a Glock does not fully chamber the round and with .40 high pressure loads, will bulge the brass near the end of the casing. Folks are saying that you need to get a full length sizing die to reform the casing to be able to reload.

    #1. Is this a real issue?
    #2. If so, is there a Dillon 550B sizing die that will reshape the casing?

    It would be a pain and time consuming to test chamber each round - to look for the bulge.
    Last edited: Nov 22, 2012
  2. dkf


    Aug 6, 2010
    The .40 and Glock deal is a over done a lot of times. A good full length sizing die will size things back to fit in an OE Glock barrel. The Lee dies size down farther than most and have a smaller chamfer on the die. Only real downside to the smaller chamfer is sometimes the case does not line up in the die as smoothly. There is also a Lee bulge buster and a Redding GR-X pass thru dies but I would not screw with them unless you are actually having issues. I kicked around thinking about a pass through die but decided just to see if I have issues, which I didn't. Glock barrels have more support than they used to anyway.

    Dillion makes good presses and if I was buying one for myself it would be a 550. (currently have an LCT that serves me well) Depending on your shooting volume you may want to consider jumping into the 650 right away.
    Last edited: Nov 22, 2012

  3. randyc74


    Mar 10, 2008
    Northern Illinois
    I load .40cal on my Dillon 550B and Lee dies. I've loaded several thousand rounds with no buldging brass issues.
  4. TonyT


    Mar 14, 2009
    I use a lot of 40 S&W once fired brass which is picked up from LEO's at our range nad they shooot Glock's. I use a Dillon 550 with standard Lee carbide dies and have not expereinced any problems. I shot my reloads in a 1991, CZ-40B, and PO-16-40, As a matter of policy I scrap brass from high pressure cartridges such as 9mm or 40 S&W after four reloads.
  5. TX Archer

    TX Archer

    Jun 4, 2011
    Austin, TX
    I shoot a lot of .40 and use a 550B with Dillon dies. My .40 brass is all shot out of a Gen 2 Glock 22, Gen 3 Glock 23, or Gen 3 Glock 27. I also pick up a lot of range brass that has been fired from Glocks. I have never had the first problem with the so-called Glock bulge.
  6. Colorado4Wheel


    Nov 2, 2006
    I like the Lee sizer. Glock bulge is a non issue for nearly everyone. Some people with fancy race guns an super tight chambers have issues. That is not you I am sure.
  7. F106 Fan

    F106 Fan

    Oct 19, 2011
    There are many sizing dies and if you look at the opening, you will see a radius on the edge of the carbide. This helps progressive loaders get the case aligned. Dillon dies have a rather generous radius. The Lee sizing die has a pretty minimal radius.

    This matters because you may want to size as far down the brass as possible and THAT'S why everybody is saying they use the Lee sizing die. The smaller radius gets a little farther down the brass. Not much, but just enough that it matters.

    BTW, only carbide dies should be considered. And Hornady One Shot lube is the way to go even when carbide dies are used. The lube makes the process a lot easier on you and on the machine.

  8. DWARREN123

    DWARREN123 Grumpy Old Guy

    Jan 25, 2008
    Clarksville, Tn.
    I have reloaded 40 S&W/10mm with Lee 3 die sets and have had no problems but it was on a single stage press.
    Should have no problem with any good die set.
  9. Murphy's Law

    Murphy's Law

    Nov 1, 2007
    Tampa, FL
    Six years reloading my G23C with one single issue in ref to the bulge.
  10. jmorris


    Apr 13, 2006
    Every one uses FL sizing dies for pistol rounds. The only neck only sizing dies are for bottle neck rounds, even then you don't use neck size rounds in semiautos, as a general rule.

    A 550 is no different than any other press in that you can't resize the part in the shell plate or where the radius is cut into the mouth of the die. Some dies don't have much of a radius but are a pain when used with a progressive.

    You can use an undersized die but I don't.

    The case pro roll sizer is the solution I use but push through sizes will also work.

    FWIW I don't have a problem with Glocked brass as much as "machine gunned" brass, they are quite loose.
  11. SDGlock23

    SDGlock23 Glockoholic

    I've used the Lee and Dillon resizer for years without a problem, and I slightly prefer the Lee resizer, which is the only thing about Lee I like better than Dillon. A year or so ago I got the Lee bulge buster kit and it really lets you know which pieces were bulged, which isn't all of them, but a good number. The bulge buster kit isn't a requirement since in the years prior I never used one, but I do find myself using it all the time nowadays.

    Oh and bulge isn't just a .40 related issue, it's an issue with every cartridge, it's just that some of the earlier Glock barrels were not as well supported as newer ones. There are still guns out there today with horrible case support, I had a S&W SD40 and it bulged ALL brass so bad I was actually afraid to shoot it and sold it.
    Last edited: Nov 23, 2012
  12. Hoser

    Hoser Ninja

    May 22, 2002
    Me too. I have not had a brass issue since I started using it. I dont even bother to gauge my ammo anymore.
  13. jmorris


    Apr 13, 2006
    For thoes that may not know what a casepro is or what they do, they have two dies that sandwich the case between them and rolls them between them. They form the case back to spec including the extractor grove. There are a few others out there, like the scharch that also roll size but none of the push through sizers can match them.


    I also automated mine so it doesn't add any time to my reloading process.

  14. vtducrider


    Nov 13, 2008
    Austin, TX
    Gen3 Glock23, Dillon 550B with Dillon .40 die here. I have had a lot of bulged casings. Most of these rounds shot okay, but I have had quite a few Failure-to-Feeds because of the problem. I am at the point of doing all the resizing/decapping first, and put the cases through my .40 case gauge. I am weeding out probably 5% of the casings. I am too cheap to get another set of dies. lol... Besides, I am mostly reloading 9mm and 45ACP now.
  15. dkf


    Aug 6, 2010
    I think if I had to spend that kind of money to get my ammo to fit in the chamber I would either get a barrel that isn't so tight or quit reloading altogether.

    Nice machine but jesus guys throw money at this stuff.
    Last edited: Nov 23, 2012
  16. So do gals... :crying:
  17. breacher1


    Apr 13, 2009
    reloading range brass shot from Glocks. some older some newer, on a Dillon SDB. the proprietary dies on this machine don't touch the barrel bulge so I need to chamber check every rd I plan on shooting thru my 40 conversion in my G32. I don't know the barrel brand because I bought it used and it has no markings but the chamber is tight.

    I get about a 15 to 20% no go rate. my stock G35, Steyr M40. and Taurus PT740 all have generous chambers and will feed all the rejected rds w/o issue so nothing gets wasted.

    I considered a Lee bulge buster setup but then I would have to put up another press just for that since it won't work with the SDB. so I decided to skip it and just go with what I have.
  18. dkf


    Aug 6, 2010
    In your case buying one of those cheap single stage Lee presses, bulge buster kit with the fcd would be a good idea. For $61 plus shipping (from midway but you can get it cheaper elsewhere) you could be setup and utilize that 15%-20%.
    I never met a gal who spent close to grand to roll form brass. Maybe I just have not been around enough.:dunno:
    Last edited: Nov 23, 2012
  19. fredj338


    Dec 22, 2004
    Stay off over pressure loads, std Dillon dies work fine. I seem to have managed since the 40 first came out. Most guys are having issues shooting max + loads. Even the GLock chamber isn't that sloppy shooting normal pressure loads IME. If it is an issue, get a Lee carbide sizer, seems to size a bit firther down, or run them thru a push thru sizer or if yo uhave the money, get a roll sizer. My buddy went the roll sizer route, but it's a damned expensive way to go.
  20. breacher1


    Apr 13, 2009
    In your case buying one of those cheap single stage Lee presses, bulge buster kit with the fcd would be a good idea. For $61 plus shipping (from midway but you can get it cheaper elsewhere) you could be setup and utilize that 15%-20%.

    exactly - I found some good deals on ebay for cheap single stage presses but it's just another step that I don't wanna do. so the bulged rds get tossed in the bulged bucket and get shot out of any one of my 3 other 40 cal pistols. no big deal.
    I only load light to medium target rds so I'm not at all worried about kabooms caused by the brass.