Since our post honor guard is extremely busy with funerals, the rifles are subjected to harsh use and extremely dirty rifles. The honor guard, captain, does have a cleaning sessions but not the regiment cleaning with time constraints. We have had the same problems with miss fires but I can attest to the biggest culprit is dirty chambers, bores and bolts. So far, with proper cleaning, we have not had any issues. We use the same ammo from Lake city and have not had a problem. Try and give the rifles a good cleaning to start off and if that does not work, you may have to isolate the problems as the other members have suggested.

Nick

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NRA Instructor\GCA Gunsmith