Need tech help
OK, here is the deal. Diamond Victory 65# 29" draw shooting a 412gr arrow at 259fps. The arrows are Easton Axis ST 340s cut to 29". The head is 100gr. I know because of the animals I have killed that this set up works. However I like to tinker and I'm looking for more speed. What kind of increase can I expect if I switch to 85gr heads? also what kind of KE do I have now and what will I have if I change? I don't know the formula and I stink at math. Thank you for your help and input. Oh, BTW, I took a big ol kisser button off the string so I should get some pick up there.