Those of us who shoot smoothbore guns know how quickly fouling can build up inside the bore. If we neglect to wipe it out after a few shots, the gun becomes very difficult to load.
A few years ago, I was shooting in a muzzleloading shotgun clays competition. While I was running wet patches down my barrels after each shot, I noticed others were not. Instead they were spraying a bit of Moose Milk down the bore after they loaded their powder, wads, and shot charge. During a break in the shooting I asked about that.
What I was told is; As long as there are no pitts in the bore where the wads sit and those wads fit tightly, the cleaning solution can't migrate past the wads to wet the powder charge. When the fouling is kept damp, the wads clear the fouling out when the gun is fired.
The next day I did the same. I didn't need to use a patch until I cleaned the gun at the end of the day. I also didn't see any difference in my scores as I broke the same percentage of clays as before. My curiosity was stirred and I wanted to know if the old time shooters did anything like that and would it be effective in the field. I did find one reference to an old time shooter who said he always spit into the muzzle after he loaded his shotgun. Wow! I would never place any part of my face in front of a loaded shotgun! I choose a safer method and added a small 2 ounce spray bottle of Moose Milk to my shooting bag.
So now I just put a couple squirts of Moose Milk down the barrel after loading the over shot card. Field testing this method over three seasons of clays shooting and two different pheasant hunts I can report that it works like a charm. With the Moose Milk down the bore the wads clear the fouling as well or better than running a wet patch down it. During those pheasant hunts I only fired my second barrel one time. So I have no concerns about the length of time the Moose Milk stays in the barrel before that barrel is fired.
This little tip saves time in loading, saves patching material, and prevents issues with ramming down a tight load in the field. I recommend giving it a try.