Cabela's Big Game Hunter 2012

It turns out that I was making this trophy out to be much, much harder than needed. Once again, shoe478 has a video outlining an awesome strategy:

For those of you that prefer to read, what you want to do is load up the Namibia reflex gallery. (It's the first one.) Do the first objective and then the second without missing a shot. You will have a 100% shot rating and should have over 20,000 points. When you get to the third objective, just let the timer run out so that you fail. Keep letting the timer run out until you end the gallery. At the end you'll be awarded your trophy.