I need your help Im shooting a beman ICS 400 and I can' t tune for any thing on mader what I do nothing changes the arrows are 30' ' long and 100 gr tip the bow is 70 pond with hard cam could thes arrows be to limber Iv tryd every thing I know to do any help you can give Ill try any thing at this pont

What is your draw length? 30" ?? might check that out. try an 85 grain broadhead. turn the bow down.

I downloaded a program off Easton' s site awhile back. Looks like they recommend 64 lbs. max for the 400' s, at 65 & up, they recommend 340' s?
http://www.eastonarchery.com/

Definitely underspined. You should go up to the 340 size.

thanks all of you I got a 7 ponter opening day her in ohio so Iv got a loy if time to work on it now