340PD Cylinder/Trigger Binding

107driver

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All,

Just got back from the range where my main mission was to test some 148 gr DEWC loads in my 14-4 (it seemed to like 3.2 gr of Bullseye better than 2.9 or 3.5), but I threw some of the leftovers in my 340PD. After only 15 rounds I was getting occasional binding towards the end of the trigger pull, but I think only for one or two of the charge holes.

Because I was low on ammo, I failed to get great test results; I can't be sure if it was the cylinder resisting the last bit of rotation or some internal issue. In 300-500 rounds previously shot through the 340, I have not experienced this. Brass is new Winchester, I had no resistance when loading/ejectin the rounds, and I found no high primers nor anomalies in the fired brass.

Side note: POI was significantly to the right of POA.

Please advise if this should appear in Reloading or Gunsmithing.

Many thanks,
_107driver
 
I had that happen on a 340 PD. A very small amount of crud/burned powder got under the star extractor. Cleaned around and under the extractor with Hoppes and a nylon brush and the problem was fixed. Try it and see if it helps.
 
Post-range cleaning revealed lead on the yoke, and I think that is what caused the binding. I'm just surprised that it happened so quickly. May have to be a jacketed-only shooter.
 
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