bought my Rem 700 used. its in 35w rebored from 3006. previous user said... "When I got it the extractor was chipped. I had a gunsmith at metro shooting supplies change it out for a brownells heavy duty extractor and change out the ejection spring. Lastly, I installed a drop in adjustable Timney trigger because of the recall."
i haven't shot it a bunch, but the few (10ish) factory rounds have gone off fine. my cast bullet loads however have many failure to fires. out of 40 rounds I've had 8 that didn't fire the first pull, re-chambered and 4 of those went off, 4 still haven't.
When re-chambering often the case would be left in the chamber and the ejector wasn't grabbing it. when they didn't fire there would be just a slight dimple on the primer. when a re-chambered round did fire on the second time in 2 instances the primer was backed out like it wasn't sitting on the face of the bolt. that happened twice in a 4 shot string and i recorded 200fps higher on those shots.
i cant imagine that the chamber was cut so sloppy that its not seating correctly without me noticing something on the fired brass. fired brass looks identicle to a factory round. brass was formed from LC72 3006 brass.
could the after market ejector be to blame? how to i determine if it is the culprit?