S&W 60-9 357 Jamming

[sound2man]

I bought a 60-9 J Frame revolver in stainless steel a little while ago, and it shoots great as long as I shoot 38 specials. However, when I load up 357 rounds, it jams about 1 in 5 times. If you jiggle the cylinder a bit, you can cycle to the next round. Anybody have any ideas what is going on? I disassembled, cleaned and lubed it, but it still does the same thing.

The only other gun I have ever had problems with jamming is a desert eagle, if this keeps up I will trade it in for something more reliable.

[Tom-ADC]

Did the ejector rod back out a little bit? hold the cylinder and try turning it in to tighten it.

[P5Ret]

What type of ammo are you using factory or reload? The only time I have ever had a revolver jam like you are describing has been with reloads where the primer would back out of the pocket, and bind the cylinder. If your shooting factory ammo, take it to a competent gunsmith and have it checked, before you put any more ammo through it, just to make sure something isn't out of spec, and it is functioning properly.

[sound2man]

I am shooting LAX Ammo reloads, I never had a problem with them in my blackhawk, but I could try factory new to see if it makes a difference.

What type of ammo are you using factory or reload? The only time I have ever had a revolver jam like you are describing has been with reloads where the primer would back out of the pocket, and bind the cylinder. If your shooting factory ammo, take it to a competent gunsmith and have it checked, before you put any more ammo through it, just to make sure something isn't out of spec, and it is functioning properly.

[sound2man]

Did the ejector rod back out a little bit? hold the cylinder and try turning it in to tighten it.

I will give that a shot - don't have the revolver on me at the moment though. Thanks for the tip.

[aleng888]

Try some factory new round. i had this before with some of my own reload that the primer dose not sit in all the way in.

[Masterdebater]

Hot loads will do this as well but I doubt those are hot, check them primers

[twotacocombo]

How many 38spl rounds through the gun? Made sure there isn't a carbon ring built up that isn't allowing the 357s to fully seat?

[JTROKS]

What bullet weight are the 357 magnum rounds? With the combination of a light gun, heavy recoil and insufficient crimp can cause the bullet to jump forward and jam things up

[smittty]

What bullet weight are the 357 magnum rounds? With the combination of a light gun, heavy recoil and insufficient crimp can cause the bullet to jump forward and jam things up

That's an all steel gun, if it was scandium then yes bullet jump is possible but not normal for the 60.

[Rolls-Royce]

This reminds me of something I saw years ago with my old Model 19 (K-frame .357). My gun was brand new then and the forward cylinder end bushing started backing out under recoil of the then very hot Super Vel loads. It had backed out enough to jam the gun when microscopic high spots on the bushing and crane moved against each other, and aided by powder residue under the extractor star. Finally solved by a gunsmith who pressed the bushing back in and staked it. No more jamming after that

[JTROKS]

That's an all steel gun, if it was scandium then yes bullet jump is possible but not normal for the 60.

If the bullet is heavy enough and crimp is not sufficient. Oh we'll what do I know I only have a 640 and 66-3 snubby.

[badinage]

the 38's are leaving a ring of carbon in the cylinder, as they are shorter....this ring blocks the case of the .357, making it run proud of the cylinder causing your "jam"

you need to clean your weapon properly and completely, especially after shooting a ton of .38's in it

[rm1911]

the 38's are leaving a ring of carbon in the cylinder, as they are shorter....this ring blocks the case of the .357, making it run proud of the cylinder causing your "jam"

you need to clean your weapon properly and completely, especially after shooting a ton of .38's in it

Most likely this.

Or check all the ammo by a simple flat surface test. Put the round on a flat surface, standing straight up. If the round wobbles a bit or it looks like the case head doesn't sit flush the primer could be set just a little too shallow. In autos it doesn't matter but is very much a problem in revolvers. The primer should be flush. This will cause cylinder binding and make it hard to operate.