Well its uncommon in my area at least there was only one of these guns on this en placement and it didn't lob many out there or at least haven't found any remnants of many. I am looking for a 2.6" wiard bolt base cup the shell hit something hard more than likely a tree as the top of the nose is broken off but would love to have a base cup to sit it in. I'm not sure if there were many variants of this she'll but mine has no flame grooves. Any help if someone has one they would like to get rid or know where one is I would be willing to buy it or trade for something else.
