Henh.
I'm jealous. That's a nice weapon, GTO.. shoot the hell outta it. No such thing as a 'gentle' break-in on a battle rifle... give it to Laz for a coupla hours. You'll prolly get it back warm, but workin 100% and battle-zero'd.
Intresting story about the grease in a Garand. Chosin Resevior, Korea. M1's were jamming in the sub-zero conditions.. the Marines picked up commie bolt-action m44's and 1891/30's and used 'em to great advantage. From that point on, Marines slept with their garands in their bags and were damn particular about keeping 'em 'donut warm' at all times.

'Adapt, Improvise, Overcome.'