Found the original post...
Any ideas on this monster thang......thought about just putting the fill hole and the dispensing hole both on the big end, and maybe cut a little off the point and make a powder measure. Then I thought about maybe cutting a little bigger piece off the point and making a priming horn out of that and go ahead and drill out the big piece for a normal horn.
There is about 10 1/2" of hollow in the horn.