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Main Boards => The Shooters FORM Board => Topic started by: m midd on May 11, 2011, 04:26:00 AM

Title: 3 under and tuning question
Post by: m midd on May 11, 2011, 04:26:00 AM
I recently switched from split finger to 3 under and i am having trouble getting tuned. My arrows are contacting the outside of my shelf and i cant seem to tune it out. Ive went up and down with nock and brace height with now real change. I can shoot the same arrow split finger with no ill effects.. Im shooting a Tomahawk 53# @ 28  and surewood 55-60 spine arrows 29 1/2" with 5" High back shields... Any Ideas?
Title: Re: 3 under and tuning question
Post by: McDave on May 11, 2011, 03:18:00 PM
Generally the nock point needs to be raised when you switch from split to 3 under.  The minimum nock point for any of my bows that I shoot 3 under is 5/8".  Most of them shoot best around a 3/4" nock point, and a couple like it even higher, around 7/8".  If the nock point is too low you will get a bounce off the shelf.
Title: Re: 3 under and tuning question
Post by: nschlag on May 11, 2011, 09:21:00 PM
what McDave said
Title: Re: 3 under and tuning question
Post by: raghorns on May 12, 2011, 12:51:00 AM
Yeah...it may look ridiculous, but keep moving it up until you get good flight.
Title: Re: 3 under and tuning question
Post by: m midd on May 12, 2011, 02:17:00 AM
Whats odd is my arrow flight is perfect..Ive shot it through paper at 5 and 10 yards with a perfect bullet hole.with my nock at 3/4" it shows nock high but i still get good flight .  i still get a tink sound and the mark on my arrow.. I am in the process of building a set of 5# lighter spine arrows and messing with my strike plate.
Title: Re: 3 under and tuning question
Post by: m midd on May 12, 2011, 02:18:00 AM
I am gonna raise the nock higher before i mess with the plate though.