Shear_stress
Member
- Joined
- Apr 27, 2005
- Messages
- 2,728
It's always fun to be the exception to the rule.
Until now I've always favored Smith revolvers and steel or aluminum-framed semi-autos. However, I recently gave in to a long-held, secret craving for a long-slide Glock. Now it appears that the ghosts of Horace Smith and Daniel Wesson have come to punish me.
I took my used, but seemingly unfired, 17L to the range yesterday, along with a couple of boxes of WWB 9mm. To my surprise, I had myself a single-shot Glock. The thing fired and ejected fine, but failed to feed a single round. Each round would stop at an angle, with the bullet pressed against the top of the chamber.
Now for the debugging. I had scrubbed the already clean inards of the gun prior to going to the range, so that rules out powder fouling or leftover factory lube. Also, I have fired 9mm Glocks numerous times before, which I hope rules out limpwristing.
On the other hand, I've noticed a few things about the way the gun feeds when cycled manually. When cycled quickly, the gun sometimes fails to feed as described above. When cycled slowly while the magazine is down to the last or second to last round, the extractor cannot seem to get a hold of the extractor groove of each round. In other words, as the slide travels forward, the round "jumps" out of the magazine ahead of the extractor. Additional pressure on the slide causes the extractor to "snap onto" the extractor groove as the round is fed into the chamber. With a full, or nearly full magazine, the extractor groove of each round rises into the extractor just fine as the slide pushes the round forward.
Also, this gun has an extremely rough feedramp and breachface. The quality of the machining makes my cheap Bulgarian Arcus look like a Korth in comparison. I wonder if this could lead to the following (which I hope I explain clearly): As the slide moves forward, the rough breachface prevents the case head from sliding up and thus prevents the extractor groove from being engaged by the extractor. As the slide continues foreward, the bullet end of the round gets lifted up at angle by the feedramp, but the case head is not against the breachface--its upward movement has been prevented by the rough breachface. The result is that the round rises to too high an angle such that the bullet hits the top of the chamber.
Any thoughts?
Until now I've always favored Smith revolvers and steel or aluminum-framed semi-autos. However, I recently gave in to a long-held, secret craving for a long-slide Glock. Now it appears that the ghosts of Horace Smith and Daniel Wesson have come to punish me.
I took my used, but seemingly unfired, 17L to the range yesterday, along with a couple of boxes of WWB 9mm. To my surprise, I had myself a single-shot Glock. The thing fired and ejected fine, but failed to feed a single round. Each round would stop at an angle, with the bullet pressed against the top of the chamber.
Now for the debugging. I had scrubbed the already clean inards of the gun prior to going to the range, so that rules out powder fouling or leftover factory lube. Also, I have fired 9mm Glocks numerous times before, which I hope rules out limpwristing.
On the other hand, I've noticed a few things about the way the gun feeds when cycled manually. When cycled quickly, the gun sometimes fails to feed as described above. When cycled slowly while the magazine is down to the last or second to last round, the extractor cannot seem to get a hold of the extractor groove of each round. In other words, as the slide travels forward, the round "jumps" out of the magazine ahead of the extractor. Additional pressure on the slide causes the extractor to "snap onto" the extractor groove as the round is fed into the chamber. With a full, or nearly full magazine, the extractor groove of each round rises into the extractor just fine as the slide pushes the round forward.
Also, this gun has an extremely rough feedramp and breachface. The quality of the machining makes my cheap Bulgarian Arcus look like a Korth in comparison. I wonder if this could lead to the following (which I hope I explain clearly): As the slide moves forward, the rough breachface prevents the case head from sliding up and thus prevents the extractor groove from being engaged by the extractor. As the slide continues foreward, the bullet end of the round gets lifted up at angle by the feedramp, but the case head is not against the breachface--its upward movement has been prevented by the rough breachface. The result is that the round rises to too high an angle such that the bullet hits the top of the chamber.
Any thoughts?
