There are 3 sources for 10 g brass hulls:
The older shells made when the 10 g was far more popular, the 10 g "Parker" hulls at Track of the Wolf (which seem similar to the Mag Tech 12 g hulls and the Rocky Mountain hulls. The "antique" & "Parker" hulls use a large pistol primer and wads, etc need to be a size larger, 9 or 8 g wads etc,. The Rocky Mountain hulls, although more expensive, seem to be indestructible and on another thread here or somewhere else I read that some cowboy shooters have loaded RMC hulls 3000 times. The RMC hulls use a 209 primer and standard 10 g wads, etc.
