I've been shooting Winchester Ballistic Silvertips exclusively for over 10 years in .243 and .270. I can't say enough good things about them. Very consistent grouping, very good expansion, nickel plated casings cycle very smoothly and most importantly never a FTF. I have never had a game animal escape my freezer when I put a Silvertip in it.
With these, my shotgun is easily as accurate as a centerfire out to 200 yards.
I accept your challenge sir! We will compete in 4 different events spanning 4 continents and the winner of 3 of the 4 challenges gets pride and a firm handshake from all the spectators. Are these agreeable terms?