This is a photo of a Corporal Williams of Co. A, 1st. Minn. Inf. Regt. ,circa 1890, swabing out the barrel of his rifle after firing for record while at summer camp. He has a std. wooden barracks rod. The little bottle on the duck boards by his Rt. foot looks like a decanter of "Miller Bedfords Gun Juice". I really would like to know what they used other than just H2O. I agree with 13 echo about the rubber band to hold the breach block open wider. I also use an 1888 bore inspection devise to see what sort of a job I did. this is one of approx. 30 to 40 similar snaps that came up for bid, on ebay, about six or seven years ago.
I wish I could make the photo larger but thats all it would take.