texas chase
Member
I recently got an old german drilling from my dad that is very interesting. It's got side by side 16 ga shotgun barrels and a third rifle barrel underneath. Now there are markings that say 8.7 mm on the underside of the rifle barrel. However when we slugged it, it turns out to be 9.3 x 72R. I shot it with some Norma loads and it shoots extremely high at 100 yds , as in ~16" high. So my question is this: anybody have any clue what the 8.7mm marking is about? And does anybody have any resource for a load that would be similar to the original one intended for the rifle?
Probably a long shot but what the heck
Probably a long shot but what the heck