Just got back from shooting my S&W 610 for the first time.Waiting on reloading stuff for the 10mm, so we picked up a box of 40's Fiocchi 165 JHP's. Using moon clips, 1 out of every 6 shots wouldn't fire,(for about 3 clips) would make an imprint on the primer. It progressively got worse, 2-4 shots wouldn't fire.etc.. DA, was worse, I think only 3 out of 12 shots w/ DA fired. The pistol is also chambered for the 10mm Mag. Any help would be greatly appreciated. We are kind of bumming about this right now!

The first thing I would check is the mainspring tension screw. Make sure it is screwed all the way in. Someone may have backed it out to help with double action pull and gotten it too light for the ammo you are shooting.

And the revolver may have had a spring kit put in it. That could be the source of your problems as well.

good luck.

Ok thank you, is that the screw at the butt of the handle?

Yes.

Ok, so it is screwed all the way in. Contacted the gunsmith that we purchased it from and he is sending a new mainspring, (had a trigger job done before he sent it out, and it is very light!!) he said something about that possibly having to do w/ it..?

Yep most likely has to do with it.

Thanks all, sent it in to the 'smith w/ some of the problematic ammo. Hopefully he can work some magic on it. Ready to throw some 10mm's/mags down it!

I had a local gunsmith do a trigger job on mine.

It works fine with standard 10 mm loads, but I loaded some .40 S&W with rifle primers and it didn't even dent the primer.

The usual "trigger job" involves lightening some springs and maybe a bit of sear honing.

I would bet a new mainspring will solve your issues.

[QUOTE]Originally posted by crbutler:
I loaded some .40 S&W with rifle primers QUOTE]

May I ask why you would load .40's with rifle primers???? It doesn't seem like they would fit the primer pockets correctly and wouldn't be needed. Did you have special brass for the rifle primers?

There are a lot more people out there that call themselves pistol smiths than there are pistol smiths.

quote:

Originally posted by Gatogordo:
There are a lot more people out there that call themselves pistol smiths than there are pistol smiths.

Boy, ain't that the truth!!

Sometimes one can get lucky though. I had a good friend who used to work in the Ruger factory, assembling revolvers. One night on his own time he took my Speed Six 2-1/2" .357 Mag in there and set about trying all the different lock work parts in it which he had at hand there.

After about 6 hours, he had made the smoothest, lightest pull double action I have ever seen. It also will fire anything I have ever put in it for ammo, with never a misfire.

Not a practical approach for most folks, but as I said, sometimes you get lucky.

My only two regrets are that I sold the pistol in Oregon about 7 or 8 years ago to a friend who wanted a protection gun, and my friend Larry Arnold met some girl, married her, and moved with her to her home state of New Jersey. So he no longer works in the gun field and can't do that again, even for himself.

Love conquers &subverts all...

quote:

After about 6 hours, he had made the smoothest, lightest pull double action I have ever seen. It also will fire anything I have ever put in it for ammo, with never a misfire.

As the armorer for my dept we were using P89s at the time I changed out trigger parts and got a very nice trigger for mine out of it.