BR, thanks for the reply. So, if I understand it correctly, there are 2 scenarios that you’re aware of in recent years: 1) an overload (overcharge?) and 2) a dangerous situation made from modifying a Krag case to use in the Lee where the extractor groove in the modified case failed.

Is there not another (better) case that can be used to create the 6mm Lee round? I’m just asking because I don’t know much about the gun or it’s ammo.

Obviously, someone made cases from Krag ammo, I assume this is a rimless round. What would be the nearest rimless relative to the 6mm Lee round?