ORIGINAL: GMMAT
120 gr addition of weight means a slight loss of KE? I'd like to chrono my bow and see that. If I'm wrong I have no issues admitting that, either. Promise.
No, 120 grn additional weight means a slight GAIN in KE. Chrono it and prove it to yourself, nothing can refute what your own eyes see.
What's the heaviest arrow I can shoot that's properly spined (if I shoot a 100gr. head)? Also....what's the effect on spine? FOC?
sky is the limit on heavy arrows.....
I shoot a 316IBO Vectrix at 29" 70#, with a Easton FMJ .340 spine 481 grn arrow tipped with 125 grn head (when using rage i just add a 25 grn insert extension to bump them to 125). I only have a peep and dloop on string. If my chrono numbers are anywhere near the 277 number OT2 gave me, Im spitting over 82 ft/lbs KE. My arrows spine PERFECTLY with this match up.
this is 10 ft/lbs more than what my identical setup achieves on a 360 grn arrow according to OT2.
my arrows arent even considered heavy by alot either, just moderate.