This 100%
Howdy MistWolf,
Like I posted earlier, I tried the .40 in my G20 and out of 10 rounds, it would only chamber and fire about 2 rounds before the round would miss the extractor and drop into the chamber without being fired when the striker would fire.
This is with a G20 that has fired +10,000 rounds without a hiccup of any type.
So, if the author is claiming that he and a friend have fired tens of thousands of .40S&W rounds through an unmodified Glock 20 10mm barrel, then, yes, I’m saying the author is lying.
And no, I’m not trying to insult your intelligence.
I truly wish the .40 in a 10mm trick would work back before there were $100.00 conversion barrels because .40 brass and loaded ammo is readily available.
Heck, yesterday I picked up 4.8 pounds of pistol brass at the range and there was a mix of 9mm ( 65% ), .45 ( 25% ) and .40S&W ( 10% ) and not a single freakin’ piece of 10mm brass.
Finding 10mm brass at the range is like finding a smokin’ hot 21yo virgin working in a strip club.
Paul
Instead of assuming the author is lying, figure out why it works for him when it didn’t work for you and whether his experience is the anomaly, or yours is. Then learning will take place
Howdy MistWolf,
Like I posted earlier, BTDT and it just doesn’t work.
Pretty simple.
Paul
Edited: I have a Lone Wolf 40-9mm conversion barrel for my G23. When I first bought this barrel back in '06 I posted a thread about it on GlockTalk and the vast majority of the responders claimed it woul never work because of the difference between the size of the rim on a .40S&W and that of a 9mm. After trying to explain that the was minimal difference that I finally gave up. +15,000 rounds later it still is 100%.
Weird that it didn’t work for you. I had no problems at all cycling .40s through my G20. I just don’t think it’s good idea.
If the writer of the article has ran 10s of thousands of .40 through his G20, more power to him. I feel it’s a roll of the dice & it may eventually bite him.
Just because it hasn’t worked with yours, doesn’t mean it’s not possible with anyone’s. It only means yours won’t cycle a caliber it wasn’t designed for.
Howdy Ryno12,
Cycling wasn’t the issue. The issue is getting the extractor to reliability trap the cartridge as the slide locked up.
When the extractor missed the rim the round would drop into the chamber out of reach of the firing pin resulting in a misfire.
SAAMI specs list the .40 as being .142" shorter than a 10mm and a Glock 20’s firing pin will not reach that far.
Heck, I’ve had light primer strikes that failed to fire the round in a .451 Detonics Mag barrel when I used .45ACP ammo and it’s only .042" shorter than the .451.
I fully understand the “Just because it didn’t work for me, doesn’t mean it will not work for the next guy.” line of thought.
Can it be done? Sure
Reliably enough to fire tens of thounds of rounds of ammo?
Not in a bazillion years.
Paul
Gotcha Paul, thanks for clarifying.
wow never heard of this before, interesting
Thus the term, “That Guy”…