An attaboy to S&W

Got a new Smith 25-15 in .45 Colt; the thing is beautifully made, and shoots very straight.
(cloverleaf 3 shot group at 50' with an old, blind guy pulling the trigger from a crude rest).
But it had an ugly creep in the trigger.
Had a look, and even sharpened the trigger sear; nothing doing. Swapped hammers with a 325PD, problem moved to that gun, so the issue is the hammer.
Called S&W on the phone; they are sending me a new hammer.
Tho' it shouldn't have gotten out the door, the tech was very helpful.
He's also getting moved south, so I wished him luck.
Moon

Funny you should ask; been wondering the same thing. There is nothing to complain about about the hammer in the 25.
The 325 is a bit of a problem child. It really isn't much fun to shoot with my standard 780'sec softball load, and I had ignition problems with any but the thickest factory mainspring in the box. But it had a great single action letoff, and a great double action.
Solved the recoil problem with some lighter loads and bullets, loaded in AutoRim cases.
Anyway, when the new hammer shows up, I'll have to decide.
Moon

S&W mainsprings come in a variety of thicknesses, whether by design or by accident.
It worked fine with the one it was born with, but I tried substituting a ribbed one...it really helps the double action. It did in this case, except then the gun wouldn't fire. Putting a random OEM flat mainspring back in didn't solve the problem either, hence miking them and finding the thickest.
I'll keep the firing pin issue in mind, tho'.
It crosses my mind that the really light weight of the gun might be some of the problem. With the same geometry as a steel framed N, it may be the gun 'moves' a little under the impact of the falling hammer, cushioning the impact on the primer.
Moon

Thanks, Bill. Oddly enough, I put a ribbed mainspring in the 25, and did experience an occasional misfire in double action. Have to wonder if the boss on the hammer is a skosh too long, resulting in the firing pin not getting a firm whack.
Now, that said, the ribbed mainspring did have a really mushy feel. I put a S&W mainspring in, using the thinnest one in the parts box. Haven't shot it, but it feels much firmer.
Moon