My arrows are Beman ICS Camo 340.. They are 10.0 grains per inch.. They are cut to 28 inches.... They have 4 inch feathers, Insert, and 100 grain tip? Can anybody tell me what the weight should be?

I had it chronoed at 236 But i turned each limb up 1.5 turns if that adds enough speed to count.??

After this what would my over all KE be? and Velocity for people who like that??

THanks in advance

Check out gold tips or jacksons site. Gold tips is much smaller and should take you less time to get too.

they should weigh 421 grains with 11.2% FOC,and at that 236 fps you end up with 52 lbs. kenetic energy.yes cranking your limb bolts in a turn and a half would increase speed but don't know how much.

Just weighed mine on my scale, I've got bemans 400 8.4 gpi at 28, 4" vanes and 100 gr tips,mine weigh 391 your arrows weigh 44.8 grains more than mine which gives you 438 if the weight differance between vanes and feather is 17 grains than neman1 has it figured for you.

Newman how did you figure the foc? I have it somewhere on my comp. thank you.

Is the 11.2% FOC good? or bad

Found the formula. Mine is 11.6 with 100 gr and 13.4 with 125's which I removed last week,



Someone from the board posted this at one time.

9% is Ideal forward of Center
here is the most accurate way to determine forward of center...

Get a long finishing nail and nail it into a wall just enough to get it snug without falling out. Now with your finished arrow find the balancing point on the arrow and mark that spot on the arrow.

Measure from the throat of the nock to the end of the shaft ( do not measure the point or insert) this is the cut length of your arrow.

Now, divide this measurement by 2 this will give your center of the arrow measurement.

Mark the center of the arrow (from the throat of the nock to the center).

Measure the distance between the balancing point to the center.

Multiply this measurement by 100 then divide that multiple by the arrows cut length.

This will give you your FOC%