We tend to do a lot of overthinking on this forum for sure! It almost seems like that's the main objective.let's not overthink things here, MK bullets will drop a deer, but, Sierra states on there site that "Match King bullets are NOT recomended for game", there's better choices, Sierra's tec. data alone shows the GK preform better, that's all.
Bullet Selection - Sierra Bullets
www.sierrabullets.com
Many "match" bullets were specifically designed for 2 legged game. Sierra's, specifically in .308, being one of them. Hornady's eldm bullets have proven to be fantastic on game, despite being "match" bullets.
Real world performance>manufacture disclaimer
I'm not saying that match bullets are always the answer, but if they shoot better in a particular gun, they can be a very valid option. Being able to hit the animal exactly where you want is a priority.