ORIGINAL: BowTech_Shooter
Corb,
I set up a 2003 Extreme VFT at 50 lbs. (it' s a 60 lb. model turned down) 28" draw at 80% let off.
I tested it with a brass nock and hush kit on the string using a 326.3 grain, 3-39 A/C/C arrow .
I shot 4 arrows and the speeds posted were 262 fps., 262 fps., 261 fps. and 262 fps.
Keep in mind, that turning the 60 lb. model down to 50 lbs. lost a little speed as did having the cam a little out of time from turning the poundage down and not re-timing the cam.
Wow!
So I would set up the bow with a whisker biscuit and peep and lose a bit of speed but should still be at 250+ fps. This is good news Shooter. I really appreciate the time you took to do this.
So do you have any idea how much arrow weight affects the speed at this poundage? Would you be able to maybe change the broadhead weight by 25 grains and measure the speed difference? I don' t want to overstep my bounds nor take advantage of your goodwill. But the ratio of fps/gr will complete the picture for the ExVFT.
Either way, based upon your testing, I will be going to my Bowtech dealer to test drive this bow and see how the bow draws and feels. I' m sure I can get them to setup the bow with a WB and peep and can bring my chronograph.
Thanks again! As I mentioned earlier, I wish the manufacturers would forget about a single point reference (IBO speed) and provide these real world numbers.