I also agree - you won' t gain 11 lbs of KE just by going to a heavier arrow. Your ke will remain about the same.

I also think a 28" , 72# SQ will do much better than 49 lbs of KE - something is up?? 245 seems a bit slow also - unless you have tons of junk on your string.

That setup - should blow through a lung shot - if tuned well 49 or 60#' s of ke - don' t matter.

And what are gold tip 100' s???

Did you recover the deer? Are you sure they were hit where you thought?