.... That was the result of necessity ! Being at the end of the road, figuratively speaking, and with the huge numbers of Enfields available, plus the wide variety of game, ammunition, other than military ball, was not that easy to obtain. In the late 40s and early 50s there was a lot of experimenting with "wildcat loads/cartridges" .... so, it was really a case of playing with what you have ! ....... David K. .....