This carbon arrow weights 600 grains with a lot of weight forword with the 210 grain BH and 75 grain steel adapter plus the arrow(315 grains) cut 29" equals 600 grains. My 47#@28" longbow shoots this arrow at 156 fps on my crongraph. It always shoots arrows into the ground with a pass thru (like a STOS which is a 2 blade 1 1/8" wide) but wide 1 1/2" or big four blades it shoots them up to the feathers. This is Texas bucks field dressing 100 to 120 lbs.It seems to be the same results on hogs weighting 80 to 100 lbs.live weight. These arrows shoot flat at this weight and will group under 6" at 37 yards where I shoot them into a dirt terrace. This seems not to be as fast as some of the reports we read, but they seem to be using very light arrows. I am trying to impress you that the reports using weight forward and a heavy arrow work. Ken