Shelf impact question

[cvento]

Hello All! I am a new longbow shooter with a Bob Lee Stickbow 45# at 28" draw.
I have been having an issue with my arrows tearing up my shelf pad. I have been shooting Beeman 400 carbon fletched arrows (Beeman Hunter 400 8.4 gpi) and from research thought they may be too stiff.

I picked up a few Cabelas carbon arrows (45/60 7.3 gpi) that are supposed to less stiff. Still having same issues per pics below.

My nock point was set using a T square and placing the nock about .25" above centerline.

I have been shooting 2 under /1 over.

Any suggestions on what I might try to get rid of this impact problem?

Thanks!!!! Christian

[McDave]

Do you mean that your nock point is set so that the bottom of your arrow is 1/4" above center,  or is the nock itself 1/4" above center?

I would be willing to bet money that your nocking point is too low.

Bisch

[Whip]

Been there, done that, raised my nock point.  

[cvento]

Thanks guys ,
I set my nock so that the bottom of the nock is 1/4" above centerline as measured with square.

I place my arrow under the knock , and I assumed that I needed the approximate thickness of arrow above centerline .

Sounds like I am way off and that my know should be set closer to 3/8 above center. Does that sound right?

I shoot split finger and every bow I own has a nocking point right at 3/4" high. Some people wil not be that high but almost all I know will be at least 1/2" high.

Bisch

[JimB]

I would call it level not center line and my top knocking point is 5/8" above level and the arrow's nock goes under that nocking point.Once I've found my best nocking point height,I add a second nocking point below the arrow's nock.

The point is,the arrow should not be level but higher in the nock end and the amount is different for different shooters and setups.Some need the top nocking point 7/8" above level.Move it a tiny bit at a time till it works for you but while you are doing that,change nothing else.Only change one thing at a time.Good luck with it.Take your time and be patient.It will come together.

[JimB]

The other thing,you are going to need points somewhere in the 200-250 gr weights.

[McDave]

Agree with everything JimB said in his first post.  As far as points are concerned, I have successfully tuned arrows to fly well out of bows very similar to yours with points from 125 grains on up.  The 125 grain points would be with 500 spine arrows (which might be designated 35-55), while the "on up" would be with stiffer spined arrows.