Couple years ago, I went shooting with a couple buds who were sighting in rifles for an upcoming late season deer hunt. We just tossed my portable bench in the back of a pick-up, and headed out in the woods.
Pete had a really sweet old 700 BDL in 7-08, that was having light strike fail to fire problems. I took the rifle and dry fired it, and it sounded like a weak mushy "spelekk" instead of a distinctive "snap".
I took the bolt, and using the edge of the bench and a penny, loosened the cap to dissemble it revealing the cruddiest mess I'd ever seen. A few squirts of WD and some brushing of the spring/pin, and inside the bolt body and things were ducky.
Those guys, who religiously clean their barrels, didn't have a clue about bolt maintenance. Treated me like I was McGiver.

jd