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Ammo and Reloading Factory Ammunition, Reloading, Components, Load Data and more. |
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#1
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Glock Smile
So I've been spending a few hours each day soaking up info on reloading. One thing that seems to stick out is the famous Glock Smile. I have a Glock 17, 20, and 27. I wanted to check this out with the 10mm cases from my Glock 20 and sure enough every case has a small bulge on one side near the head. The cases ranged from Armscor to Underwood. Is it drastic? No, far from it, but it's there. Should shooting reloads be a problem through my Glocks or will extensive case inspection as preparation be enough?
Thanks for all the help so far btw. Good community here. |
#2
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I removed the bulge with this:
https://ads.midwayusa.com/product/88...saAoeQEALw_wcB before replacing the barrel in my G20 with the KKM Precision barrel: https://kkmprecision.com/product/20-match-10mm-2/
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TIMENDI CAUSA EST NESCIRE - Seneca |
#4
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7 Billion people on the planet. They aint ALL gonna astronauts. Some will get hit by trains... Need GOOD SS pins to clean your brass? Try the new and improved model... And remember- 99.9% of the lawyers ruin it for the other .1%... |
#5
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#7
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Armscor brass In my experience hasn't been to strong it's fine for medium loads at best. I have pushed the same loads on armscor that showed expansion not enough for smile but measured vs starline with not sure how many times reloaded that showed very little. The armscor was once fired brass
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#8
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In my experience, a bulge only really occurs in high pressure rounds. I would not worry about it in your 9mm. The only Glock I have replaced my barrel for one with more chamber support is my G20. The rest (G19, 17, 34, 22) seem to be fine without a barrel. That said, I also run my 10mm reloads pretty hot.
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#9
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First thing I do after purchasing a Glock at a good price from my LGS is replace the barrel. I use Wolf. |
#10
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The smile "bulge" is in the web of the brass. That brass is compromised. While you can push it back into place with a bulge buster type die, the brass has been weakened.
If you are not creating high pressure reloads you will probably be fine...but if that brass blows out the side at that spot it will damage your gun (and maybe your hand, eyes, face,etc.) therefore I chuck all my bulged 40 caliber and 10 mm "glocked" brass. New 10 mm brass is not that expensive and I shoot 10 mm in my sig p220. Sig Sauer's have fully supported barrels so reloaded brass from this gun is not compromised the same way. If you only have Glock 10 mm guns then the pre-weakened brass is more an issue. The bulge buster was not created to take Glock smiles out of brass. It was to remove the muffin top circumferal bulge that builds up in cases over time with multiple resizing events. The brass "flows" down toward the head of the case as it resized, but the resizing ring stops above the edge of the case extractor groove. These gradually results in a non-resized small section. If that gets large enough it prevents easy cartridge insertion into the chamber. Taking out bulges from non-supported chambers (from Glock pistols, 1911's) was someone's creative problem solving. |
#12
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#13
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I use the redding grx die on brass when I buy it and I changed the barre to a lone wolf so I don't have to worry about it as long as I keep the brass separated.
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#14
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My view is that if you can see a bulge it's not good but if you can only measure the bulge to identify it that is normal. I have no issues with Glock 9MM, 40 S&W nor 45 ACP either factory or reloaded. I have bought once fired brass with an unsupported area OR fired slightly out of battery that shows the "guppy belly" swelling. Scrap this brass. It's common that rifle and pistol brass will measure a few thousandths expansion on one side of the brass. I believe it's from the cartridge lying in the bottom of the chamber when expansion starts and the excess chamber clearance at the top of the chamber. I do like my Redding GR-X push through die for sizing purchased once fired brass for 40 S&W. Just because the 40 case is nearly straight walled versus tapered cases in 9 and 45.
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#15
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While that will work for your 10mm, once you've also bought the FCD, it won't work for your 9mm...note that 9mm isn't a listed caliber
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...because the journey is the worthier part...The Shepherd's Tale |
#16
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Here is a pic of the barrel and a once fired casing. Like I said the bulge is no where close to some of the smileys I've seen, but I guess my question is if I keep reloading these cases will it get worse over time? IMG_4725 by Sam Colt, on Flickr IMG_4727 by Sam Colt, on Flickr |
#17
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I have a Gen 4 G27 and don't see any signs of Glock Smiles. If I did, I would reduce the powder weight and carry on. If it should show signs of smiles with factory loads, I would change the barrel.
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