Hmm. Both can be deemed "Lethal " Damage. However, a .308 makes a big hole possibly, and yes is traumatic... but a battleaxe makes a great gaping wound. A .308 wound can/could be covered/stopped reliably delaying the onslaught of major blood-loss, but a huge battleaxe wound may not be as easy. The axe creates a messy visual wound, while the round may not make a huge wound, but has messed with the pc internally, possibly fatally... It is a fine line, I believe. Both are very terrible wounds.. Just depends on your story, and how effective you wish wounds to be???