Lesham I also took 60% of one guy, Merc_Mtemko with one shot with my mw longbow and mw bodkins, 7 pd and 8 wm.
And he had 80 body armour.
That's not standard, it's sometimes just lucky like a critical hit. And usually a hit near your throat takes more damage, although it's still chest.
And maybe your archer was like me a guy with high lvl and high stats, to get maximum damage with a bow :/
These shots happen very seldom so please stop complaining about them before we receive another nerf -.-