Originally Posted by bullittsam159
Sorry. I definitely think the hammer follow is the only explanation. Is there anything you can do to stop the sear from releasing the hammer until the bolt is seated? I sure don't want to stop bump firing but I also don't want to blow off my face. I'd say these wants are about equal though? I know that a lot of firearms have systems to stop the gun from firing when at all out of battery. And once again, thanks for your constructive posts.
I disagree. I do NOT think hammer follow is whats happening here. If that was the case, then everyone with a slide fire stock would be having the same problem. I DO have a slide fire stock, 4 of my shooting buddies also have them, we shoot them often, and i can assure you after 20,000 bump fired rds between the 5 of us so far, that this has not been an issue. Not even once.
You have a semi auto, which means you have a disconnector that holds the hammer to the rear until the trigger is released. The hammer then travels forward a slight amount until it comes back to rest against the sear, and remains there until the trigger is pressed again. Thats how it operates in a semi auto. Bump firing is still semi auto. So unless your disconnector is worn or filed off, you cannot physically release the trigger fast enough to allow the hammer to ride the bolt forward. However, if your disconnector was worn or filed off, it wouldnt really be semi auto anymore and would warrant yourself a stay in the federal pokey if it were discovered by the athorities. Fwiw, i dont think this is your problem either.
Another cause of light primer strikers would be worn or broken firing pin and/or worn or broken hammer spring. However, if either of these were your problem, you would be having light primer strikes whether you were bump firing or not. I would rule this out also, but a quick looksee at the parts wouldnt hurt.
I sincerely suspect that your problem is ammo related. Bump firing has the potential to wear out parts at an accelerated rate, but if your rifle is milspec, then it should be able to handle much much more than a little bump firing.
If you have swapped out anything for performance parts, such as a titanium firing pin or a lightened hammer or stuff like that for whatever competitive reasons you may have, then please disregard everything ive just said.