Militec-1,a great lube that eats the heat.As for Breakfree clp you would be better served cutting the bottle open and pouring the oil in the garbage and using the ptfe slurry in the bottom of the bottle that never mixes, no matter how hard you shake it
Any true,long range instructor worth their salt would discourage the use of magnum or large cal. rifles in a beginner course,If it is a beginner course.