Hi all.
This is a long post but I want to give all the details to the experts.
I recently replaced the extractor in my MilSpec Springfield with a Ed Brown hardcore. I did this because the original was clocking and every now and then the claw would jump off the case and leave it between slide and barrel.
I've read all I could find about how to tune an extractor (ain't THR great?) and (dangerously) armed with that knowledge I tentioned the extractor such that a loaded round would survive the shaking test. Since then I put about 300 rounds through the gun and it sure ejects well, though not very energeticaly. No more clocking either (the firing pin stop was also replaced with an Ed Brown).
However from the begining I noticed that while testing the gun with Azoom snapcaps, the last round would not eject correctly, the nose didn't seem to clear the ejection port. This was odd as it had no problem with the old extractor (and I did put the old one back in and indeed that went away). I didn't worry to much about it as the empties were ejecting fine, and a real loaded round did as well. And this only happened if no round was under it, meaning the problem happened with an empty mag or no mag but not with a mag with 1 or more rounds.
But at the range I noticed that I was getting a few failures to go into battery, the round alligned with the chamber, under the extractor but not fully into battery. So I set myself to figuring it out. Riding the slide while loading a round I noticed a bit of bind right at the last 1/10 of an inch before going into battery. The bind was not there without a round. So I thought extractor, and tried the old one. No bind with the old one.
So then I thought "To much tension" and I set myself to bending and testing. If I unbend the extractor enough that the binding goes away it just falls out of its channel with no pressure when the stop is removed. It seems to loose. If I add the slightest bend, then the return to battery comes back.
:banghead:
I looked at the extractor itself, and all the bevels are there and nice and smooth. I guess I just don't get it. When people say that the extractor should have enough tention to keep a loaded round through a light shake, does that mean hold it against the breach face, or can the the round hang down and forward? An empty against the breach face ... how hard? I can get it to hold an empty with a very little bend but if I shake it too hard it jumps out and before that it starts leaning forward, away from the breach face. At the same time it holds a loaded round through a shake, but at an angle. And I still have a bit of a bind at the last of the return to battery.
Also if I unbended such the bind goes away, that last snap cap now ejects well as well, but then it seems that the extractor is way to loose. I tried everything else I could think off. Removed shok-buff (ed brown white) and put it back in. Removed FLGR and replaced with standard version. I tried recoil spring between 13 and 18.5. Same deal with all of them, and I still think it is the extractor.
So can anyone give me a hint? It seems that I can get too much and not enough tension but not just right. I wish someone would put up a video of the process and of the hand tests so I could see if I'm doing them right.
Now I will hang my head and shame and go shoot a K98k until the 1911 guru's help me fix this, because apprently the Springfield is to complex for my little brain ...
Hmmm ... simple bolt action gun .. drool...
Loch
This is a long post but I want to give all the details to the experts.
I recently replaced the extractor in my MilSpec Springfield with a Ed Brown hardcore. I did this because the original was clocking and every now and then the claw would jump off the case and leave it between slide and barrel.
I've read all I could find about how to tune an extractor (ain't THR great?) and (dangerously) armed with that knowledge I tentioned the extractor such that a loaded round would survive the shaking test. Since then I put about 300 rounds through the gun and it sure ejects well, though not very energeticaly. No more clocking either (the firing pin stop was also replaced with an Ed Brown).
However from the begining I noticed that while testing the gun with Azoom snapcaps, the last round would not eject correctly, the nose didn't seem to clear the ejection port. This was odd as it had no problem with the old extractor (and I did put the old one back in and indeed that went away). I didn't worry to much about it as the empties were ejecting fine, and a real loaded round did as well. And this only happened if no round was under it, meaning the problem happened with an empty mag or no mag but not with a mag with 1 or more rounds.
But at the range I noticed that I was getting a few failures to go into battery, the round alligned with the chamber, under the extractor but not fully into battery. So I set myself to figuring it out. Riding the slide while loading a round I noticed a bit of bind right at the last 1/10 of an inch before going into battery. The bind was not there without a round. So I thought extractor, and tried the old one. No bind with the old one.
So then I thought "To much tension" and I set myself to bending and testing. If I unbend the extractor enough that the binding goes away it just falls out of its channel with no pressure when the stop is removed. It seems to loose. If I add the slightest bend, then the return to battery comes back.
:banghead:
I looked at the extractor itself, and all the bevels are there and nice and smooth. I guess I just don't get it. When people say that the extractor should have enough tention to keep a loaded round through a light shake, does that mean hold it against the breach face, or can the the round hang down and forward? An empty against the breach face ... how hard? I can get it to hold an empty with a very little bend but if I shake it too hard it jumps out and before that it starts leaning forward, away from the breach face. At the same time it holds a loaded round through a shake, but at an angle. And I still have a bit of a bind at the last of the return to battery.
Also if I unbended such the bind goes away, that last snap cap now ejects well as well, but then it seems that the extractor is way to loose. I tried everything else I could think off. Removed shok-buff (ed brown white) and put it back in. Removed FLGR and replaced with standard version. I tried recoil spring between 13 and 18.5. Same deal with all of them, and I still think it is the extractor.
So can anyone give me a hint? It seems that I can get too much and not enough tension but not just right. I wish someone would put up a video of the process and of the hand tests so I could see if I'm doing them right.
Now I will hang my head and shame and go shoot a K98k until the 1911 guru's help me fix this, because apprently the Springfield is to complex for my little brain ...
Hmmm ... simple bolt action gun .. drool...
Loch