,,,,having two problems re slide locking:
1) The slide will periodically lock open with unfired cartridges in the magazine.
2) The slide will periodically 'not' lock open after firing the last cartridge.
I have tried several remedies but for the sake of argument let's assume I am starting from scratch,,,,,,,,,
1) Make?
2) Which magazine?
3) Is there a buffer being used?
4) Have you checked your thumb position?
Jon,,,,sorry,,,,it's a Colt Series 70.
Have tried various makes of mags from new to old.
No buffer.
Thumb position is well below the the slide lock lever.
Has both problems regardless of various ammo.
But ... do you have both problems with all magazines, or does one problem occur with one type/brand of magazine, and the other problem with a different type or brand of magazines?
You mentioned various makes of mags, but a lot of the makes today offer multiple options for followers, capacities, springs, and even tube length. Which magazines -- exactly -- are associated with which type of stoppage?
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But ... do you have both problems with all magazines, or does one problem
occur with one type/brand of magazine, and the other problem with a different
type or brand of magazines?
You mentioned various makes of mags, but a lot of the makes today offer multiple options for followers, capacities, springs, and even tube length. Which magazines -- exactly -- are associated with which type of stoppage?
hawkmoon,,,,,both problems happen with all standard mags,,,,,,,Wilson, Kimber, Springer, Colt, RIA, C&S,,,,,,,,,,,Various followers (metal, synthetic, etc)
Next questions:
1. When the gun locks when there are cartridges in the magazine, are there cartridges (plural, as in "more than one") left, or is it the LAST round that locks the slide?
2. When a round locks the slide, what is the position of the top bullet when you look into the ejection port? Is the bullet stuck with its nose underneath the lug of the slide stop?
3. If you take the slide stop out of the gun and carefully examine the portion that's exposed inside the mag well -- are there traces of copper on it to indicate that it's being rubbed by the bullets as they feed?
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both problems happen with all standard mags,,,,,,,Wilson, Kimber, Springer,
Colt, RIA, C&S,,,,,,,,,,,Various followers (metal, synthetic, etc)
This is neither specific nor helpful. Wilson offers at least two different lines of magazines. Kimber magazines have at least two different types of followers. So do Colt, and I believe Springfield. Are the Colt magazines made by Check-mate, Metalform, or Okay Industries? RIA does not make magazines, so you must be referring to some brand you got somewhere that you associate with RIA pistols. What make? How many rounds capacity? What type of follower?
Diagnosing an intermittent problem from afar requires specific information before we can even make semi-educated guesses. When people ask you questions such as these, they are trying to help. The least you can do is respond with accurate answers.
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3. If you take the slide stop out of the gun and carefully examine the
portion that's exposed inside the mag well -- are there traces of copper on it
to indicate that it's being rubbed by the bullets as they feed?
As Hawkmoon mentioned this is the how and where the bullets may be contacting the slide stop lug:
1) Slide will lock open when there are several cartridges left in the magazine or sometimes when there is just one (no pattern)
2) No, bullet nose is not stuck under the 'lug'.
3. Yes, occasionally there were traces of copper on the lug,,,,I have taken several 1000th off the lug and checked the cartridges when inserting the mag and depending on the seating depth with factory ammo I have all but eliminated that problem ,,,,,,FYI, I've tried semi-wadcutter that does not touch the 'lug' and still have the same results.
The Kimber Mag is the 8RD,,,,blue full size 1911 (marked on the pkg.) with metal follower.
The Colt mag(s) were taken out of NIB Series 70(s) and marked .45 Colt Auto (no other markings). 7 round capacity.
The RIA mag came with the pistol and is marked Armscor,,,,,,,7 round capacity. Metal follower. No other markings.
Wilson mag. is 8RD with synthetic follower,,,,,,,marked Wilson Combat,,,,,no other markings.
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,,,,Sir, thank you for the photo,,,,,Yes, as mentioned I relieved the 'lug'
several 1000th to eliminate any problem re the bullet contacting same,,,,,
But if it's not being pushed up by your thumb, something has to be pushing it up. When you test for this manually, do you do so by pushing a loaded magazine up into the mag well with the slide off the pistol so you can watch for contact?
If so, are the rounds loaded all the way to the back of the magazine? If so, try again but shove the rounds forward until the tip of the bullet is basically riding up against the front wall of the magazine well. This is how far forward a round might move through a combination of recoil, slippery follower, and being dragged by the round(s) above it. You may find that you need to take a bit more off that lug.
Good photo of the problem, BTW. Thanks.
[QUOTE=Hawkmoon]But if it's not being pushed up by your thumb, something has to be pushing it up. When you test for this manually, do you do so by pushing a loaded magazine up into the mag well with the slide off the pistol so you can watch for contact?
If so, are the rounds loaded all the way to the back of the magazine? If so, try again but shove the rounds forward until the tip of the bullet is basically riding up against the front wall of the magazine well. This is how far forward a round might move through a combination of recoil, slippery follower, and being dragged by the round(s) above it. You may find that you need to take a bit more off that lug.
Good photo of the problem, BTW. Thanks.
Yes, I have checked the relative position of the cartridge(s) in the mag. while inserting the mag. in the frame with the slide off. I've also moved the next round to feed forward so that it touches the feed ramp and still have clearance between bullet and lug.
I'm beginning to question recoil ,,,,,,,and plunger friction on the slide stop. The complete plunger assembly has been replaced and appears to have sufficient tension. I think I have a slide lock from a used pistol with a detent for the plunger to rest in,,,,,might have to try that.
Problem diagnosed and solved,,,,,,I removed .020 from the top of the slide stop that rests against the bottom of the slide rail,,,,,weapon 'runs' and functions perfect........Recoil coupled with the additional mass of an extended slide stop was causing the problem,,,,,,,,
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Problem diagnosed and solved,,,,,,I removed .020 from the top of the slide
stop that rests against the bottom of the slide rail,,,,,weapon 'runs' and
functions perfect........Recoil coupled with the additional mass of an
extended slide stop was causing the problem,,,,,,,,
If you had mentioned this fact it would have saved some bandwidth...
,,,,no, no, 'extended slide stop' was a replacement for the original,,,,,,the weapon continued to mal-function with both until I removed the additional metal from both,,,,,I'm saying the mass of both contributed to the problem,,,,,