JBingheim

Well no joy with the suspected hammer strut issue. I relieved some of the frame where the strut was making very minor contact. I also took a file to the relief hole that the strut protrudes from - it looked like the strut was maybe rubbing against the opening. The rifle was still experiencing the same malfunction. I swapped the Volquartsen trigger parts back in and it runs just fine. I'm not sure what else to do but reach out to KIDD.

I appreciate your help and I'll check it out just to be EXTRA sure, however when I installed the Kidd kit I did not change the return spring. The plunger and spring stayed together the whole time. I have the plunger inserted in the smaller opening side of the return spring so they don't come apart unless I pull them apart. Plus I haven't taken apart the disconnector/trigger/sear, I dropped it right in with the temporary pin. I did find some info about the hammer strut possibly getting pressed up against the stock/chassis (due to the hammer sitting slightly further back in the trigger housing compared to OEM) when the hammer is cocked. Basically pushing the strut a little further outside of the relief hole on the back of the housing. I'm going to check this out tonight but not sure when I could actually test it via cycling with ammo. Will update as soon as I can actually fire test this theory.

Has there been any update to this? Mine just started doing this after installing the Kidd trigger kit. I couldn't make it more than 3-4 shots without this same failure. Just installed the kit and the whole rifle was cleaned-as I also do after every match-and magazines were recently cleaned. Tried it with my son's BX-25 magazine as that very rarely gets used, probably less than a few hundred rounds, and the same thing happens. I swapped out the return spring behind the trigger for a heavier one and it still doesn't make it more than a few rounds. The trigger seems to reset but it doesn't "feel" like it resets. I've had light return springs before and even when that happens you can pull the trigger forward to reset it. That's not the case here, though. It's like the trigger just dies-it can't even be pulled forward to reset. It's a strange malfunction and I have disassembled/reassembled and verified parts.