Hk 51? Oh dear that's the G3 thing that thinks it's an MP-5? Right? Woa boy was that muffled as well?
I read this again and realized that the 'truth' regarding 308 vs 223, is equally true if talking about the 223 vs the 9mm pistol. If it's dark and the target is behind cover (ie, we can't see the target and the bullet can't get to the target anyway), it really doesn't matter what caliber we're talking about. The 223 (especially a 223 softpoint from a short barrel) has LESS barrier penetration than a lot of pistol loads, so even that 'advantage' is gone in this silly exercise.308 fans r dumbasses. No advantage over 223 at night or in thick cover, and only idiots are in open country in daylight. So why bother with the pos? Just means no concealment, no .22 unit, no can, or no handiness with can, same thing, carry half as much ammo, etc.