I have had a problem off and on for a week with my LR308 not cycling, and today it became worse. At first it didn't want to strip a round from the P-Mag especially when I used the bolt release. Today it did fine for about 15-20 rounds, but then sometimes the bolt did not recoil and extract the next round. If I pulled the charging handle it extracted the case and fed the next round, but it was basically a single shot by then. I also had a few times where it chambered a round but the bolt didn't fully close. If I pulled the charge handle back I could look and see the round in the chamber. When I released the bolt after removing the mag it would lock up and fire. I tried a new P-Mag and it did the same thing. It ran fine yesterday- no cycling issues at all. Does this sound like maybe it's just dirty, dry, or do I have something else to look for? It has only had about 50 rounds since I last cleaned it, but I may not have lubed it enough after cleaning.