Recently picked up a Colt Junior .25 that appears to be in good condition. I have taken it to the range a couple of times and fired maybe 80 rounds using at least 3 different types of ammo. I find that 5% to 10% of the time, as the cartridge is being pushed forward by the slide, the cartridge will not enter the chamber all the way, and the gun jams with the slide not fully closed. Sometimes, a tap on the back of the slide will close it and it will fire, but sometimes I have to pull the slide back and start over. This jamming occurs during semi-auto fire, not when I first load it. I have cleaned the gun and the magazine, but the jamming continues. Any thoughts on what the problem is and how to fix it? Thanks.
Feeding problem with Colt Junior .25
- Thread starter cjwils
- Start date
Not entirely sure this will help, but it won't hurt. Sounds like there may be an issue with the return/recoil spring though. Just a WHAG. $10.25 at Gunparts.
http://stevespages.com/pdf/colt_junior.pdf\
Better pictures in this one. Has the exploded drawing.
http://stevespages.com/pdf/colt_25_hammerless.pdf
http://stevespages.com/pdf/colt_junior.pdf\
Better pictures in this one. Has the exploded drawing.
http://stevespages.com/pdf/colt_25_hammerless.pdf
HisSoldier
New member
I have to agree, plus perhaps someone altered the feed lips on the mag, have you tried another mag?
This Astra design is normally very reliable, I have several.
This Astra design is normally very reliable, I have several.
Several areas come to mind. One is the magazine. The second is the extractor which if the hook is too sharp will keep the round from rising. The third is the breech face, which if rough can do the same thing. Fourth is the chamber edge in the barrel; if it is sharp, it can keep the round from sliding in properly. Fifth is the feed ramp. Sixth is a stuck firing pin that keeps the round from coming up.
As you can see, this is the hardest malfunction to try and diagnose at a distance. Everyone has his own idea, based on his own experience, as to what could be wrong; some will be correct.
Jim
As you can see, this is the hardest malfunction to try and diagnose at a distance. Everyone has his own idea, based on his own experience, as to what could be wrong; some will be correct.
Jim
HisSoldier
New member
The quickest, easiest test should be done first. Two tests that are cheap and quick and easy are the ammunition and the magazine. Try a different brand ammo, then if there is no difference try a different magaine.
After eliminating quick, cheap and easy then go on to check the extractor and breech face, however, if you take the slide off and attempt to slide a cartridge up the breech and under the extractor that may show something quick cheap and easy.
One of the first things most tyros do is "polish" the barrel ramp, and unfortunately they often do more than polishing, they often alter the angle. It makes for a bad day for the gun.
After eliminating quick, cheap and easy then go on to check the extractor and breech face, however, if you take the slide off and attempt to slide a cartridge up the breech and under the extractor that may show something quick cheap and easy.
One of the first things most tyros do is "polish" the barrel ramp, and unfortunately they often do more than polishing, they often alter the angle. It makes for a bad day for the gun.