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Posted: 1/30/2009 4:39:43 PM EDT
| I'm loading up my first bunch of 9mm for my newly purchased G17L (yay). I'm using my 550 with Dillon dies. I checked the first few rounds out of the press and I noticed the bottom of the cases near the case head, is larger then the middle. I measured the difference and it is about .010", the middle being .37x and the bottom being .38x. The rounds chambered fine in the gun, which is probably due to the fact that it's a Glock. What's going on here? Is this anything to be worried about, or is the die just not resizing the entire case? |
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Glock 9mms are known for the "lack of chamber support" in that area and the resulting "issues" (if you want to call it that).
Anyway, re-size them and see IF they'll work. Sometimes, it does and sometimes it doesn't work. It depends, differnet brands of dies and on your loader/press (shell plate/shell holder). The carbide ring of your die may get further down the case during re-sizing and thus, may offer a better fit for your Glock (and other 9mms). Aloha, Mark |
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If the case is supposed to have a taper then I guess I'm set.
I'm working with range brass that I've collected over the years. This is my first 9mm that I've reloaded for. The chamber on the newer glocks are supposed to be better supported. The chamber on this gun looks to be pretty well supported. I'm going to replace the barrel with a Lone Wolf eventually so I shoot lead and get that extra little bit of chamber support. |
| You eventually may notice a small bulge near the base of the brass even after reloading, not to be confused with the .40 cal unsupported case issues. If you are using the brass in the same gun, you'll probably never notice a problem. Some handgun have looser chambers than others. It make them work how we like them. I ran into a problem years back when i was reloading for a few different 9mm guns. This led me to buy a max case gauge for my auto calibers. After resizing brass for my glock 17, the brass/rounds would chamber the gun fine, but some wouldn't fit the gauge or other guns. They would stick. Range brass can be a little tricky because you don't know if it's once fired or someones 12x reloaded brass that's been shot out of shape. When I leave my brass, there is a reason. As mentioned, you can try different dies or shell holders. I have multiple sets myself. That will probably work just fine. If you have a good supply of brass, gauge them and recycle the bad cases and use that money for reloading. I finally cheated and bought a Casepro100 roll sizer. I only use it for 9MM. It's not worth the money if you don't load that much, but it works like a charm and resizes the whole brass. |
| Something to be aware of with an aftermarket barrel, most have tighter chambers than the factory. So if your loads chamber and shoot fine in your G17L, they may not after you swap barrels. (I had this happen. Had to switch to an undersize resize/decap die.) Beware of this and re-check any loads before trying to run them through an aftermarket barrel, otherwise you might lock up the gun. (That also happened to me, not fun.) |
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Consider............
Although the 9mm case does have a taper. A carbide die (if you're using one) is actually a ring of carbide, placed at the base of die. So? How does a ring (placed at the base) make a taper along the length of the case? A: It doesn't. Aloha, Mark |
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Quoted:
Consider............ Although the 9mm case does have a taper. A carbide die (if you're using one) is actually a ring of carbide, placed at the base of die. So? How does a ring (placed at the base) make a taper along the length of the case? A: It doesn't. Aloha, Mark You don't reload the 9mm , do you Mark? 9mm carbide dies have tapered carbide rings. When they first hit the market, they cost twice as much as standard carbide dies because the tapered insert was more difficult to manufacture. Today, that isn't the case. So, they do induce a taper in the 9mm case during sizing. The closer the bottom of the sizing ring to the shell holder, the more the case is sized. If your case is not being sized enough, removing material from the shell holder will help. |
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