625JM got a light trigger?

R

rnovi

New member
Ok, this is a bit frustrating. I want to blame Winchester primers, but I am beginning to wonder.

I have been having issues with Win primers needing two or even three strikes to detonate with my 625JM. I loaded up a dozen moon clips the other night and every single moonclip had at least one light-strike and in one case I ran a full five "clicks" before getting a detonation! Something was very, very wrong here.

Today I loaded seven mags for my 1911 from the same batch of Winchester primed handloads. Started with 7 + 1 in the chamber in my Colt Gold Cup. 50 rounds and 90 seconds later every single round fired flawlessly.

I also loaded and fired 42 rounds of Federal primed handloads through the 625JM...not a single misfire at all.

So, what gives? The 625JM is not listed as part of the Performance Center guns and it's not listed whether or not it has a lightened trigger.

My best guess is that the 625JM just doesn't like Win primers or has a tendency to lightstrike. Anyone else having this issue?
 
Is this revolver stock? If so then check your strain screw. If not stock then I would first check the strain screw then see if the mainspring is too light.
 
factory or handload ammo?

I had a devil of a time with Winchester Primers. I swapped from CCI to Win because I was getting about 10 dead primers / 1k. With Win I had over 50 dead primers / 1k both small and large pistol ! :eek: :eek:

For the purposes of this discussion "dead primer" = a primer which would not go off after the initial, and at least 1 restrike.

I switched to Fed, now I am down to 0-2 per 1k.
I reload for a Mac 10, 325PD, 625JM, and USP, EAA .45's.
and other calibers...

If you're reloading, check your primer depth as well. Make sure the primers aren't sticking up out of the pocket ever so slightly suck that the initial f/p strike pushes the primer forward as well as striking it.

HTH
 
Tonite will be the field test. taking a screwdriver with me to the range...gonna do a few tests on the mainspring tension screw. I think that's the real issue. I will check back tonite...
 
On all the competition 625's and 610's we shoot, we use a Cylinder and Slide extended firing pin. This will give you a better ignition, especially if you have had a trigger job on your 625. We will typically use Federal primers as well.
 
Well, it seems that Federal Primers and a very slight change to the mainspring tension screw has made the gun 100% reliable. I didn't fire any Winchester primers tonite though.

Now my 625 is keyholing two out of every six rounds...appears to be hardcast lead only that is doing it. I ran out of test ammo to fully figure this out. /sigh. One big cleaning coming up now and the need to field test to see if that fixes it or if it's truly a bullet issue only.

As the saying goes... "when does the hurting stop?"
 
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