Just got this used 625 JM. Came with some moon clips and mooning(?) tool.

Used, in pretty good shape. I've shot a few hundred through it. Getting some ignition troubles with my CCI primers. I just happened to have a Wolff full power main spring on hand. When I pulled the grips and popped the side plate I discovered the set screw for the main spring had been backed out 2 1/2 turns.

I replaced the spring, put in a 14 pound rebound spring and stoned and polished the rebound slide and a couple spots on the hammer and trigger.

I have not shot it yet, but the trigger feels better now than it did. Interested to see how the ignition is now.

One of the guys at the club has his 625 set to 6 pound trigger D/A and needs to used Federal primers to get consistent ignition. I might try some Federal primers and a reduced power main spring in the future.



I have small hands and the grip feels pretty good. There is a set of Ahrends on order however.

It sounds like you are doing all the right things for your gun. I would also check the strain screw. If it has been shot a lot it may be "mushroomed" where it pushes against the spring and need to be replaced. That happened to me once.

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Rolan Kraps
Gainesville, Ga

That's a great gun you got, it's a performance center special and they install a Wollf reduced power main spring. They then adjust the action to that spring which gives it that smooth trigger. If it were my gun I would not mess with the innards of a PC gun until I tried Federal primers which according to Jerry Miculak are the best for that gun. I would think he knows.LOL Here's mine:

I looked at the pc guns like yours, and was tempted to get one for the 3/4 lug and the action job. This was a pretty good deal considering the extras thrown in. I'm still second guessing myself because I'm not a big full lug fan.

The main spring in this JM was not a Wolff. I've put Wolff spring kits in 10 guns in the past year. The main spring in this gun is identical to the 10 sitting in a pile in a drawer on my bench. The previous owner had turned the strain screw out to lighten the main spring, but had not touched any of the internals to smooth it out.

I like to tinker with guns. I got started with a couple of 1911s a few years ago so bought good screw driver set and Arkansas stones. I bought the Kuhnhausen manual for S&W revolvers after getting a 66-2 apart and getting lost.

The 625JM is not a PC product - it's part of their 'Pro' line of premium production revolvers. Some of it's included extra's are the JM logo and grip, eased ejector star for faster reloads, a spring-loaded front sight base for fast changes, and a modicum of a trigger job. The latter was effected by grinding the end of the strain screw. My 625JM was purchased early - 2/05. The strain screw is of the current style - it's turned end intrudes into the hollow Wolff spring's hump, lessening the pre-load. The end result is an even lighter trigger - and a promise of ftf's even with the Wolff full power spring and anything but Federal primers. The answer, with Wolff springs, is either the older flat ended strain screws - or a hardened socket headed 1/2" SS set screw - 6-32, I think - from Home Depot. Set the screw with the proper spring to front strap separation - and test fire - screwing said screw in/out for more/less hammer strike. The flat ended strain screw is faster! S&W sent me one six years ago - gratis.

Slicking the rebound slide's sides - and installing a lighter rebound spring - helps, too. The latter will slow the trigger return speed - if you are a JM-type, leave the OEM rebound spring in place for fastest return. I am a mere mortal - I put a lighter rebound spring in mine - and reload with Federal primers.

Stainz

Got some .45 auto rim from Starline deliverd the other day. Loaded up a variety of 200 gr swc with Clays. Out to the range today. The auto rim is normal loading for me, so felt good. The 3.5 gr Clays felt great, but didn't seal the chamber like the 3.7 and 4.0 did, so the cases were a bit sootier.

Put some Ahrends on from the 25-13 Mountain Gun, then discovered I had a set of round to square target stocks, so took the 25-13 along as well.











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I have two 625's (.45 ACP). One is a Model of 1989 (625-6) with 5" barrel and one is a JM Special with 4" barrel. I didn't care for the issue grips on either. I added Pachmayr Decelerator grips.

Using Ranch Products steel full moon clips really requires good re-mooning and de-mooning tools. After using a variety of tools I have settled on two for painless use of the full moon clips:

I use this one for filling the clips (re-mooning):

Deluxe Moon Clip Tool

It will work for de-mooning but I much prefer the Brownell's de-mooner - it makes short work and requires almost NO effort:

It is called "Moon Clip Stripper":

BROWNELLS : MOON CLIP STRIPPER - World's Largest Supplier of Firearm Accessories, Gun Parts and Gunsmithing Tools - BROWNELLS

That pair of tools will remove the aggravation of steel full moon clips.

I use RIMZ polymer clips for range use. They work perfectly, require NO tools, but are less secure for "serious" work:

Ez Moon Clips

One caution with RIMZ clips. There are two different types available. Be sure you get the proper ones for YOUR model revolver.

My 625's are my most shot revolvers. They are BOTH extremely satisfying handguns.

Dale53

That's a nice looking rig!! I just had my PC in .45ACP looked over and the GS said it was as smooth as anything. I love my PC!!

These are great revolvers, for sure. Mine came with the JM stocks, but they just didn't work for me. Now, it alternates between Ahrends and Altamont Magnas.

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-jwk-
US Army '72-'95

How do those Magnas work for you? I have them on one of my round butt revolvers (Model 19-3 2 1/2") and find them to be quite comfortable. In the past I've had a problem with wider grips pounding the base of my shooting hand thumb but the Magnas don't do that.

Thanks for the heads up on tools. Mine came with 40 moon clips and the deluxe moon tool, but it doesn't work well for de-mooning, so I ordered the Brownells tool, and some of the plastic moon clips.

I like long range sessions and I like .45ACP with 200 gr lswc. These reduced loads are great, no slide to cycle. My Baer and Brown are PISSED.