Cylinder sometimes jammed with a spent case.

[docpilot]

Good afternoon.
I already have wrote about my 44 magnum mod. 29 hammer nose bushing trouble, solved with a little repair and now well working.
But the problems come never alone, infact sometimes the cylinder is jammed. When I rotate it for firing, once the cases are spents there is a chamber with one of the spent cases that jams the cylinder during rotation.
I have marked that chamber for being sure of that I have seen. And it is so. All the five chambers rotate freely, with spent cases, while the "sixth" sometimes is jammed with a spent case.

What can be the cause? Before it has never happened.
Thanks to whom with an answer.

 

[Protocall_Design]

Can you show us pictures of the inside of the problem chamber?

 

[spring1271]

Have you cleaned under the ejector star? One flake of powder can bind things up!

 

[muzzlestuffer2012]

Can you measure chamber?

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[docpilot]

Can you show us pictures of the inside of the problem chamber?

Now is working well...mystery of the S&W...

20220403_091343.jpg Questa è la camera "contrassegnata" che si è inceppata. Ora funziona bene....

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[docpilot]

Have you cleaned under the ejector star? One flake of powder can bind things up!

I've done...

 

[docpilot]

Can you measure chamber?

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In which way?

 

[H Richard]

What do your spent primers look like? It was this type of problem that caused the 686/586 recall back in the 80's. An oversize hole in the hammer nose bushing, causing part of the primer to flow back into the bushing hole and causing cylinder lock up. If your spent primers look like those, (a raised center bump) it could be the problem.

 

[docpilot]

What do your spent primers look like? It was this type of problem that caused the 686/586 recall back in the 80's. An oversize hole in the hammer nose bushing, causing part of the primer to flow back into the bushing hole and causing cylinder lock up. If your spent primers look like those, (a raised center bump) it could be the problem.

These are my spent cases.

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[DTH]

It looks like your primers are backed out. What is your load?

 

[muzzlestuffer2012]

Those primers are way out don't shoot that ammo !!!!! Is that factory ammo or reloads ?

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[DTH]

The primers are not flattened out so I am guessing a to light load. I was testing some 50 to 60 year old large pistol primers in 44 mag cases in a Redhawk with no bullet and powder and they would back out of the case

 

[bruce381]

might have a SW says a exspanded cylinder as in over pressure round that makes exstraction harder

 

[docpilot]

These cases you have seen before, have been reloaded with the minimum charge of GM3 (8 grains)

20220403_190815.jpg
20220403_190916.jpg
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[docpilot]

And this is a commercial ammunition.

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In effects, my first trouble happened with commercial ammunition jamming the cylinder sometimes.