Prelubed Ox Yoke patches are expensive about .10 cents each. Crisco in the chamber is a waste the first round blows most of it out. C3 is correct on proper ball size and 99.9% lead balls. Putting lube and patches in these guns is a modern thing. Colt never told anyone to do this in the old days. If you want a small amount of lube over the chamber use a high heat nonpetro lube like Mobile One Red Grease from Auto Zone. This whole issue of cross firing chambers is a "Boogie Man" BS yarn any way. This is caused by poor fitting caps on worn nipples no big deal. I was test firing a Ruger Old Army at the range last week. The ROA had a bad nipple and it cross fired the right out board chamber. I was shooting near max loads of 40 grs of T7 under a 200 grs. conical at a measured velocity of 1,011 FPS. at a 7 Yd combat target. The cross fired chamber and the centered chamber put rounds 1" apart in the bull. I wish I could get the gun to shoot that double all the time. The cross fired or chain fire in most cases you will not know it until you find an empty chamber you did not fire. The chamber fired ball will go 12 yards and hit the ground. The gun you have will most likely need a new set of nipples. The old nipples may be froze in the threads. Install new ones with antiseize clean nipple threads once per year. Make sure to lube the center pin. The 58' Remington will often bind by 18 fired rounds. Drop the cylinder clean and lube the center pin.