Been reading about the excellent results folks have been getting on deer with the Sierra 85 gr HPBT in .243 cal.I was curious if the same praise is given to the flat based version?The reason for the distinction is I really dont like boat tails. I've seen and have been told too many times that they lose their cores.Not much of a cor to a .243 to begin with so any such behavior is not so good. I shoot alot and although Barnes bullets are interesting, they are a bit rich for my budget. Anybody use them? Thanks!