Okay, so I’ve done everything I can think of and possibly research on my Glock 17 80%. It is a V1.5.
It will fail to fully got in to battery about 1 in 30 rounds generally. A light tap on the rear of the slide and it pops in.
Originally it was that the firing pin striker liner was not installed corrrectly and the slide stop was in backwards. Replacing those took it from every rounds loaded automatically was a FTF to about 1 in 10.
I’ve honed the edge of the barrel hood and slide interface and that improved things ever so slightly. As well as disassembled and bent the striker reset arm (or whatever it is called) out slightly as it wasn’t shaped quite right and was putting some pressure on the side wall of the lower.
The rails appear machines correctly and by hand it goes in to battery 100% of the time, even if I lower the slide till it is just barely touching a cartridge (using dummies) and release it. It won’t go in to battery if I lower it further till the round is starting to chamber and I release it. The recoil spring at that point doesn’t appear to have enough force to overcome the extractor lipping over the cartridge case.
I have NOT replaced the recoil spring assembly. It is a Glock factory part and factory weight for a 3rd gen.
So suggestion of next attempts? Should I bite the bullet and get a Wolff guide rod and a couple of recoil springs that are maybe 1 and 2 pounds heavier weight and try that?
PS I am absolutely positive I am not limp wristing it or riding the slide stop or slide.
PPS is this occurs with the same apparent frequency for UMC and white box, steel case, PPU and Winchester NATO and a few other loadings. Only one I haven’t seen it happen on is are Remington Golden sabers, but I just may not have shot enough of them (only one box of 124gr +p) as occasionally I can get through an entire box without this occurring.
Part of my thought at this point is that since it is occurring with all weights and power of cartridge, that the recoils spring doesn’t have quite enough force to always snap it back in to battery against whatever frictional forces are fighting it. I am also wondering since it never seems to occur until about 15-20 rounds in...ever now, if it is parts heating up and expanding a bit that is what is causing the slight extra drag. After my last range session I did hone the barrel hood and slide just a tiny bit more with a keeper file and some 220, 400 and 1000grit sand paper. Not a ton, just a little more.
It will fail to fully got in to battery about 1 in 30 rounds generally. A light tap on the rear of the slide and it pops in.
Originally it was that the firing pin striker liner was not installed corrrectly and the slide stop was in backwards. Replacing those took it from every rounds loaded automatically was a FTF to about 1 in 10.
I’ve honed the edge of the barrel hood and slide interface and that improved things ever so slightly. As well as disassembled and bent the striker reset arm (or whatever it is called) out slightly as it wasn’t shaped quite right and was putting some pressure on the side wall of the lower.
The rails appear machines correctly and by hand it goes in to battery 100% of the time, even if I lower the slide till it is just barely touching a cartridge (using dummies) and release it. It won’t go in to battery if I lower it further till the round is starting to chamber and I release it. The recoil spring at that point doesn’t appear to have enough force to overcome the extractor lipping over the cartridge case.
I have NOT replaced the recoil spring assembly. It is a Glock factory part and factory weight for a 3rd gen.
So suggestion of next attempts? Should I bite the bullet and get a Wolff guide rod and a couple of recoil springs that are maybe 1 and 2 pounds heavier weight and try that?
PS I am absolutely positive I am not limp wristing it or riding the slide stop or slide.
PPS is this occurs with the same apparent frequency for UMC and white box, steel case, PPU and Winchester NATO and a few other loadings. Only one I haven’t seen it happen on is are Remington Golden sabers, but I just may not have shot enough of them (only one box of 124gr +p) as occasionally I can get through an entire box without this occurring.
Part of my thought at this point is that since it is occurring with all weights and power of cartridge, that the recoils spring doesn’t have quite enough force to always snap it back in to battery against whatever frictional forces are fighting it. I am also wondering since it never seems to occur until about 15-20 rounds in...ever now, if it is parts heating up and expanding a bit that is what is causing the slight extra drag. After my last range session I did hone the barrel hood and slide just a tiny bit more with a keeper file and some 220, 400 and 1000grit sand paper. Not a ton, just a little more.