We have it so much better now than when I first started hunting with a handgun.Better scopes bullets and guns. The internet and this site allow us to compare notes and discus guns, loads,scopes red dots,bullets in real time.Bullets and loads have gotten better because of this, both cast and jacketed.It has also killed the myth of the MAGIC BULLET or gun caliber that hits him anywhere and knocks him down DRT. The bullet has to be placed thru the vitals,and get to the vitals with enough force to disrupt them and make them leak. [shot placement is still everything] But as the size of the animals get bigger the bullet integrity takes on new meaning and [nearly but not quite ] matches placement in importance. Remember no magic bullets,and a close miss on the vitals is still a miss. That's where perseverance comes in ,once you start the fight,if he's still standing keep shooting.