Big Country i started with winchester silvertips till i found the powder for the tumbler.That stuff goes a long way!I shoot every chance i get,and got so tired of cleaning the gun everytime i shot it,even during sessions.Kinda takes the fun out of shooting all day.I started using it on the 22-250,the gun shot great but would copper foul after 10-12 shots.I started loading with moly coating and i lost about 200fps,i needed 3 grains more powder to get the same velocity back and it doesnt foul or suffer accuracy wise one bit.The 7 mag i wanted to see if i could make a fast and accurate hunting load.With plain Noslers i could get to 3180 fps and started to find case head expansion and flattened primers.With moly and the same bullet ive reached 3380 with no case problems.I ended up 2.4 grains over max and quit messing around, i was quite pleased.Both guns were very accurate with any powder charge i was working up.That was weird.The 22 will shoot under 1/2 inch and the 7 mag under 3/4" all day long.Its fun to shoot.Alot of people i know tried without the same results but when prodded they admit to cleaning after 20 shots.They spend so much money on a rifle and are terrified at the thought of not cleaning it.Cant blame em though.I believe you cant benefit from moly if you dont use it as intended.Im still trying different things with it but so far i like it.