ORIGINAL: Arthur P
If you look at the Darton something or other thread a guy shot 3 different arrows and there was a much greater difference in speed than your calculating.
Well fer cryin' out loud, nodog!Go get a cup of coffee or something and rouse your wits. Your brain ain't workin' right.
I'm comparing arrows that are only 100 grains differentin weightwith a 30 fps difference. His testing is with arrows have a 187 grains difference from heaviest to lightestwith roughly a 56 fps difference between the two.
I calculate roughly 3 fps per every 10 grains of arrow weight. His results average 2.97 fps per every 10 grains of arrow weight. Therefore, my friend, his chronograph readings are
perfectly consistent with my calculations.
If you want a debate, you can take me to task over my refusal to consider anything below 400 grains of arrow weight to be a good hunting arrow. You can't argue with my calculations. Sorry.
After looking things over and chewing on this, some things have occured to me, most haven't stuck around long enough for me to put them together, save one. Your 500grn arrow was going 250 his 465 was in the 230's. If it was at the 500grn.,@ the 3 fps loss per 10 that would slow that arrow down another 10 or so making it in the 220's. That's quit a difference from one going 285+. His was also a 58lb bow. A poundage I think you recommend.
I think that buffalo hunter was around there and quit a bit heavier shaft. His would have been going at least another 30 slower
He!! I think I can throw a spear that fast.