55, i shot a moose this year and my arrow blew right through double lung at 60 yds, i use gold tips with a 140gr. bear razorhead. but im pushing 77lbs of ke. {285fps 425gr arrows} the only thing he did was flinch and went down 50 yds later {he was chasing some cows but never did catch up}. my new bow is pushing 100lbs of KE with the same arrows. the bear razorhead is very well made but again its my opinion. i have the arrow hanging on my wall the head is still perfect. you would have to spend some time sharpining these but i dont mind gives me something to do on these long winter nights.
anyways you might want to look at these they have been around 50 some years for a reason and havent changed much.

Ron

again this is just my factual opinion