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A couple weeks ago I polished the sear face and the work on the ejector. The cylinder was a mirror finish from the factory. I wouldn't call it gritty or smooth. I only feel the uneven pressure when taking very careful aim and pulling VERY slowly. As I pull, a bit past the half way point of travel the required pressure to keep it moving increases then suddenly "breaks free" to continue travel. A short travel later you hit another resistance just before it breaks to release the striker. I would describe it a two take-ups.
So if I'm practicing to be most accurate I get through the first resistance and then when I feel the next one I know that any movement will release the striker. You don't feel any grit when doing a normal "follow through" trigger pull.
Today is rainy again so being stuck inside I started looking further for the source of the resistance. I was obsessed with getting rid of the uneven resistance. With the slide off pressing on the connecter to load the cylinder didn't cause the resistance that I was feeling. I could reproduce the uneven feel by placing the striker's mating surface against the sear and pushing the striker forward as the spring normally would then pulling the trigger. I had noticed that the sear action pushes the striker back before breaking free but with the slide off I could see the striker "ramp" (I'll call it) drag on the back wall of the slot in the housing that the sear is in. (See the picture with the striker in place.) I looked at the bottom of the striker to see the uneven surface on the "ramp". I polished it and that helped a lot. Then I took the sharp edge off that back wall of the slot and the pull is smooth now.
So if I'm practicing to be most accurate I get through the first resistance and then when I feel the next one I know that any movement will release the striker. You don't feel any grit when doing a normal "follow through" trigger pull.
Today is rainy again so being stuck inside I started looking further for the source of the resistance. I was obsessed with getting rid of the uneven resistance. With the slide off pressing on the connecter to load the cylinder didn't cause the resistance that I was feeling. I could reproduce the uneven feel by placing the striker's mating surface against the sear and pushing the striker forward as the spring normally would then pulling the trigger. I had noticed that the sear action pushes the striker back before breaking free but with the slide off I could see the striker "ramp" (I'll call it) drag on the back wall of the slot in the housing that the sear is in. (See the picture with the striker in place.) I looked at the bottom of the striker to see the uneven surface on the "ramp". I polished it and that helped a lot. Then I took the sharp edge off that back wall of the slot and the pull is smooth now.