alright need help with this one.

went to the gun range today and loaded 7 bullets in 8 round magazine.fired all 6 and then the 7th jammed the gun.the slide was almost all the way forward with less then maybe 1/8 till it was closed. the slide would not move forward or back at all and was jammed with a live round in it. the range master finally got it cleared for my by holding the slide and then bumping the frame hard with his other hand.

the bullet had a nice little flat spot where the metal gouged it.got any ideas?

Factory or reload? I had some reloads do that because the length was to long, and it engaged the rifling before it touched the case. Also, if not crimped at least a little, the bullet may have moved forward from the recoil. Measure it and see how it compares to a new factory round. You can also remove barrel, and fit a good round into chamber, and try the one that was stuck. If it won't slide into it, it is the round. Might also try hand cycling them, and see if it is always the last round. May be a mag, or mag spring issue.

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Out of spec. round is most likely. Double check your chamber for cleanliness.

It's probably the ammunition.

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well its factory walmart white box stuff.ive had the gun about 4 months and only had about 50 rounds through it total.the round goes into the chamber fine manually. I did think maybe the mag spring could be weak since it was the last round.

The first time i shot the gun when i bought it i did have a jam and mark the bullet with a gouge but it didnt jam the slide.



Honestly i was afraid to take it home with it jammed like that thinking if it somehow freed itself that it would fire in whatever direction it was pointed in my bag.

See if that round will drop in the chamber without using the mag. The quality of ammo today has fallen to quantity.

They are just spittin em out to try and keep up with demand.

i just ran my dummie bullets through it and it seems to manually cycle fine.

i took it all apart and dropped the bullet into the chamber and it went all the way in without pushing it at all.

so maybe i should try running some remingtons through it and not the cheapest stuff i can find?

not sure if your CQB is new or used, but with the tighter dimensions....you need to lube it good.

also, make sure your springs are fresh....mag springs included.

you have to order recoil springs through SW since your gun is a 4" meaning the 4566 4.25" springs will likely not work correctly.

If the cartridges cycle fine manually, it's definitely the ammo. Weak loads really mess with the timing of a pistol set up for hot defensive stuff.

WWB is poo poo. Never judge a pistol by it. Federal AE is the best of the generic fodder. Much better QC than WWB.

My Kahr used to 'lock up' like that on certain kinds of ammunition. Turned out that the Kahr's chamber was shorter than most chambers on 45ACP handguns. The rounds that it would lock it up were long enough so that the round was headspacing on the bullet nose instead of the case rim. In other words. too long for that barrel's chamber.
You can tell if this is the problem by removing the barrel from the gun, inserting a live round into the barrel, and checking to see if the rear of the cartridge case is flush with the rear edge of the barrel hood. If the case protrudes past the edge of the hood, the round is too long to chamber in the gun.

bought new but its old.

Eric , assuming that the gun is cleaned/lubed , you have the factory mags and no previous owner messed withthe feed ramp.
The culprit on the medium sized 45's-4566/63/CQB etc is usually the recoil spring,I forget the overall length (have it marked on the cabinet at work) like 5.25 or 5.5 , anyway, if that spring ,which is a minimal length to begin with, takes a 1/2 " set you can start to get failures to feed, especially with the alloy guns that recoil more.
Replacement springs are about 2.00 at midway or other places,dont bother buying special springs just buy factory ones and depending on how much you shoot ,how hot your loads are ,etc replace the spring when it gets close to 1/2" shorter,easy fix. Keeps the gun from getting beat up also. Mag springs are a temporary fix, you need to control the slide speed. However if that doesnt fix it,check that your locking out tight and check your mags to make sure the springs arent in upside down, backwards or something.
Lastly ,hopefully not, have some (S-W) check the feedramp. You might want to check ( with the slide off) that rounds have no trouble sliding up under the extractor,no burrs around the firing pin hole .Otherwise these guns usually run fine on factory ammo. Good luck, Bob