trotter has a good point,if your barrel shoots a LOT different clean than it does fouled you probably have a gun problem, and tim is right too..most people don't fire enough rounds during hunting season to REQUIRE cleaning the gun...for me it's about consistency. If my hunting rifles shoot better from a fouled bore than a clean bore it means clean the gun,fire it ,if it goes where i want it to from a clean barrel so be it.Clean the gun,put it away,you're ready to hunt.If it fires better when it's fouled ok too,clean the gun,fire a round,fire another to check zero,if it's good so be it,use it like that. The point is when you figure out what your gun likes,clean or fouled,stay with it...you will always start from the same barrel condition. I believe accuracy and consistency go hand in hand.....