I believe that all you need is a heavier coil spring for the bolt.
That spring can be weak, but still be strong enough to push the bolt into the cylinder cut and lock up tight ---- until the momentum of recoil allows the bolt to compress the weak spring, retract from the cut, and release the cylinder.
If S&W won't sell you a heavy-duty coil spring replacement, I bet Wolff Springs will. You can replace the spring yourself and avoid the hassle of shipping it off to the factory.
Just to be certain, I would look at each bolt cut with a loup to make sure that they are perfectly free of crud so the bolt can enter the cut to max. depth. I would also look at the bolt itself under magnification too - to make certain that there aren't any burrs on it that would prevent it from completely bottoming out in the cyl. cut.
Am I clear on this? :?
BTW, Welcome!!
xtm
That spring can be weak, but still be strong enough to push the bolt into the cylinder cut and lock up tight ---- until the momentum of recoil allows the bolt to compress the weak spring, retract from the cut, and release the cylinder.
If S&W won't sell you a heavy-duty coil spring replacement, I bet Wolff Springs will. You can replace the spring yourself and avoid the hassle of shipping it off to the factory.
Just to be certain, I would look at each bolt cut with a loup to make sure that they are perfectly free of crud so the bolt can enter the cut to max. depth. I would also look at the bolt itself under magnification too - to make certain that there aren't any burrs on it that would prevent it from completely bottoming out in the cyl. cut.
Am I clear on this? :?
BTW, Welcome!!
xtm