I was looking at my g series whitetail while I was firing up the stove in the shop this morning. I put a little piece of plastic tubing over the nipple and took some fake shots. Then I thought " I wonder how a musket cap would fit over that tubing?"
I tried one and it fit perfect.
This afternoon I cut the tubing so it was a little less than flush with the end of the nipple and did some shooting. I shot 14 shots and had perfect ignition every time. I was wondering if the plastic would melt at all but no problem there.
So, just in case anybody wants to use musket caps with a #11 nipple, this is one way.
Art