QUESTION:
Double rifles are traditionally chambered for rimmed cartridges. I am looking at the various options for the EAA MP 94 combination rifle/ shotgun. There are a number of options for the rifle barrel. It can be had in .30-06 or 7.62x54R which have similar ballistics.
The 30-06 brass sells for about half the cost, is there any significant advantage to using a rimmed case in a break open gun as apposed to a case like the 30-06?