Help: Beretta Stempede transfer bar issue

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aftCG

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I bought a used Beretta Stampede a couple of months back. I got a good deal and it was the ideal configuration I wanted (case hardened, 4-5/8 barrel and in .45 Colt).

The action and trigger of the Beretta is outstanding, loads better than the Ruger. Not that I wouldn't own a Ruger, I just wanted a sweet wheel gun for having fun (years ago my dad had an actual SAA and as much as I didn't want to I LOVED the thing)

Well one thing I noticed in the store before purchasing was that the action seemed to hang up. I wasn't familiar at the time with even field stripping it at the time, but the guy behind the counter removed the cylinder, reinstalled and it was smooth and continued to function perfectly, so I did the deal.

I've dry fired it quite a bit and it has also continued to work perfectly. Took it shooting yesterday and it was loads of fun. On the last round it tied up again. Grr.

Cleaned it last night and noticed a peculiar trend. Holding it level, as you would for shooting it would occasionally tie up, but if I tipped it muzzle up it functioned perfectly. So it appeared that there was something gravity related.

Today I pulled the grips off and began carefully taking it apart, and looking for something that would cause the hang up.

When I removed the hammer assembly a small pin fell out. It's about .080 x .187. I could not find where the pin was supposed to go, so I did a search for an exploded diagram.

Well it turns out the pin isn't supposed to be there. How it got there I now don't care because I can't do anything about it (and yes, I have VERY carefully examined the parts and the exploded view)

I struggled for a while to figure out the correct reassembly process because no matter what I did it would be frozen up when I did so.

I began doing partial assemblies trying to figure out the issue and BINGO: The transfer bar itself is the problem.

When the bar slides upwards it hits the bottom of the firing pin and locks up the action. If I tip the gun backwards the bar tips back and works perfectly.

I don't want to start fitting parts the way I think they should go, but it seems I'm now at least on the correct path.

Anyone out there good with these things, or seen this before?

TIA
 
Take out the base pin and look at the end of it.

I don't know how Beretta is doing it, but Ruger and others have a spring loaded pin in the center of the base pin that pushes the transfer bar back out of the way of the firing pin.

They will lock up exactly as you describe if the base pin is not fully seated in the frame.

Maybe your pin fell out of the base pin, and thats what you found?

rc
 
Will do.

I've pondered the design in depth. It would either take a spring pushing the bar back as you describe or a bevel to the top of the transfer bar above the spot where the firing pin touches.

Thanks for the reply.
 
rc,
Forgive me for being new to wheel guns, but which component in that diagram is the "base pin"?
 
The approx 1/4" dia pin that the cylinder rotates on.
The one you pull out of the frame to take the cylinder out for cleaning.

Part #21 in the drawing I linked to.

rc
 
You're a friggin genius. I never even got as far as putting the cylinder back in to check the trigger out.

Per your direction, I looked and the spring/pin combination in the end of the base pin is there, but was sticking in the pushed in position. That explains why it was helping to take out the cylinder and re-install.

There's a bit of a burr on the edge, causing it to stay in. I'm going to carefully stone the burr off and try it again.

I owe you a cold one
 
rc, it is all back together and working PERFECTLY.

Thanks tons!
 
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