Winchester 100 recall firing pin
![winchester 100 recall firing pin winchester 100 recall firing pin](https://s3.amazonaws.com/mgm-content/sites/armslist/uploads/posts/2017/11/14/7574776_01_1962_winchester_model_100_308_640.jpg)
But it just goes to show that it takes very little to cause such a problem, especially in a weapon built on tight tolorances to have such a trigger to begin with. First putting it back together it added to much so that when the bolt was closed and locked at a normal speed (while empty just testing) it would slam fire so I had to file and stone it down and its been perfect for 5 years never an issue. To modify the trigger I used a cotter pin, by unfolding it and making it flat, I bent it around the trigger pivot point in a close tight fit, taking up slack in the trigger and making a lighter much more crisp break by adding more space between the pivot point and the reciver. chambered in 6.5x55, same as the springfield krag it has a 2 stage trigger. So the possibility of a foreign object binding it up is a real one.Īs far as the sear and cocking piece goes, for a good example: I have a small collection of sporter krags that I built, one is a norw. When I cleaned it after 50 rounds there were a lot of small brass shavings in there. I didn't mention it in this thread, but something is causing it to scratch, gouge, or otherwise tear up the brass around the shoulder, sometimes a bit lower, or up on the neck. I think what I am going to do next is to go to the range that has a chrono and check some of these handloads. Just fyi, don't know if it matters, but I chronographed the Winchester and Federal rounds out of this rifle once and got 30 fps, respectively. I just can't see it being a pressure issue with a load like 39.5 grains IMR4350. I've read online that this is due to an oversize firing pin hole and that it isn't a problem. The factory Winchester and Federal loads do not have this, but all the handloads do, the ones with 32 grains of 3031, 39.5 grains 4350, 40.5 grains 4350, and 41.5 grains 4350, and it becomes more pronounced with the higher loadings. When you run your finger over the primer of a fired round there are edges that come up the sides of the primer indent, and they are higher on the higher loadings. Good luckĬlick to expand.Could I still check these rounds to see if the shoulder location was the problem? Don't know how.Īs far as the bolt goes, most of my reloads exhibit primer cratering, or so I've heard it called.
#Winchester 100 recall firing pin full#
When in full auto mode, the M16 sear engages the hammer and holds it back releasing it just before the bolt locks up, that way the hammer strikes the firing pin with full force (as unauthorized as it was, I took the firing mechanism of my M16 apart to clean it and noted how the full auto system worked).Īnyways, take your bolt apart check the spring and clean out the firing pin channel, then check your hammer & sear.
![winchester 100 recall firing pin winchester 100 recall firing pin](https://i.ebayimg.com/images/g/PG0AAMXQyY1TTY-t/s-l400.jpg)
Faulty sear engagement will not necessarily cause your semi-auto to go into machinegun mode because the hammer will just ride the bolt and may not have enough power to fire the round (many years ago a friend of mine tried to turn his M1 Carbine into a machine gun by holding back the sear - it didn't work).
![winchester 100 recall firing pin winchester 100 recall firing pin](https://s3.amazonaws.com/mgm-content/sites/armslist/uploads/posts/2012/09/17/566334_01_winchester_model_100_308_cal__640.jpg)
If the firing pin channel is gunked up the pin may be held forward even if your spring is good. If your firing pin spring is weak, broken or missing it could be sticking out.
#Winchester 100 recall firing pin mod#
mod 100's, but it seems to me that two things could be happening: 1) the firing pin is sticking out, or 2) your sear is not engaging properly. Should I replace it with a harder pin? Could it have caused the firing pin to lock up sticking out of the bolt face and be the culprit? It seems to me as if it is made of something softer such as aluminum or a mild steel sheath over a core of some kind.
![winchester 100 recall firing pin winchester 100 recall firing pin](https://i.ytimg.com/vi/AtBiO-onuSs/maxresdefault.jpg)
I think this pin was replaced when the recall was done as I remember it being in far worse shape before. WIN Accessories | Numrich Gun Parts ) in the pictures below which has gouges taken out of it all the way around. Perhaps a separate issue, but perhaps not is the operating slide pin which attaches the bolt to the operating slide guide assembly(parts 33 and 32 in this schematic 100. Is it just a load problem and if I don't load that anymore could I expect this to not happen again? I also had a case neck split with a different cartridge with this loading. Could it simply be that that powder and that charge just doesn't work well with that heavy a bullet and caused an overpressure situation(or simply too much at the gas port) which in turn caused the bolt to fly too fast making the firing pin rebound and strike the primer on the next round? It is a faster powder than is generally recommended for 100 grain bullets in 243, although the accuracy was better than 4350.