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Main Boards => PowWow => Topic started by: runningbird on July 09, 2013, 02:44:00 PM

Title: arrow hitting riser?
Post by: runningbird on July 09, 2013, 02:44:00 PM
I'll attach some pictures of my arrow.  You can see the marks left on it from it hitting my riser.  I can not figure out how to fix this.

I shoot lt handed, arrows are GT 5575 with 50g insert and 150gr tip. it seems to hit even with different weight tips.  and it its hard/ very loud in my opinion. if i shoot thru paper up close it is a perfect tear, bullet hole.  but at 6' it is a 3" nock high tear with the nock end a little to the left.  bear shafts shoot right with fletched shafts.

  (http://i49.photobucket.com/albums/f266/runningbird/P1040463_zps9479e24e.jpg) (http://s49.photobucket.com/user/runningbird/media/P1040463_zps9479e24e.jpg.html)


  (http://i49.photobucket.com/albums/f266/runningbird/P1040462_zps6f1898ab.jpg) (http://s49.photobucket.com/user/runningbird/media/P1040462_zps6f1898ab.jpg.html)

thanks for any help!
Title: Re: arrow hitting riser?
Post by: Bud B. on July 09, 2013, 02:49:00 PM
Any pics of your riser? Where you believe arrow is hitting it?
Title: Re: arrow hitting riser?
Post by: runningbird on July 09, 2013, 03:19:00 PM
 (http://i49.photobucket.com/albums/f266/runningbird/P1040467_zpsc0b6cd76.jpg) (http://s49.photobucket.com/user/runningbird/media/P1040467_zpsc0b6cd76.jpg.html)

  (http://i49.photobucket.com/albums/f266/runningbird/P1040468_zps7721c4c7.jpg) (http://s49.photobucket.com/user/runningbird/media/P1040468_zps7721c4c7.jpg.html)

the mark on the arrow is in a direct line with the yellow feather in the corner of the riser.
Title: Re: arrow hitting riser?
Post by: Gump21Bravo on July 09, 2013, 03:19:00 PM
You shoot 3 under or split?

Where is your nocking point now? Do you have a nocking point above and below the nock?

Weight of your bow and your draw? How long the arrows?

Just a few things we may need to give some advice on how to remedy this problem.

But from what your saying your nock point is high. The arrow is saying its stiff since you are a left handed shooter. Have you tried to lower the nock height all the way down to get the arrow showing nock low?

edit: From the pictures your brace height looks low to me what is it at now?
Title: Re: arrow hitting riser?
Post by: Bud B. on July 09, 2013, 03:41:00 PM
If you shoot cock feather out and looking at the marks on the riser it appears the bottom of the arrow is hitting the back of the shelf near the black leather grip. If I'm correct this indicates nock low (arrow striking the shelf) thereby kickng the arrow up giving a false high.

Move nock point up 1/8" and so on until good fight is achieved.


Once that is tackled, increase brace to see what happens. I go four turns at a time and check.


One adjustment at a time and check arrow flight for a 1/2 doz or so shots in between.
Title: Re: arrow hitting riser?
Post by: runningbird on July 09, 2013, 03:43:00 PM
thanks for the help.

I shoot three under.  nock is at 7/16ths brace height is at 7 1/4 the bow is a liberty edge. 47lbs at 28" I draw 30" the arrows are full lenth 32".
Title: Re: arrow hitting riser?
Post by: Bud B. on July 09, 2013, 03:45:00 PM
Movements on nock height might be very minimal....1/16th" each move.
Title: Re: arrow hitting riser?
Post by: Bud B. on July 09, 2013, 03:46:00 PM
I also use double string nocks when shooting three under. One above and one below arrow nock.
Title: Re: arrow hitting riser?
Post by: runningbird on July 09, 2013, 03:46:00 PM
the area on the grip was caused by me cutting away rest material.  not the arrow.  I should have included that with my pictures. sorry for the confusion.
Mark
Title: Re: arrow hitting riser?
Post by: Bud B. on July 09, 2013, 03:49:00 PM
I saw that, but, the marks on your arrow indicate it's hitting the black leather.
Title: Re: arrow hitting riser?
Post by: runningbird on July 09, 2013, 04:00:00 PM
OK now I have confused myself.... Bud I think you are correct.  I thought I had made a mistake and cut that away but I was wrong.  I just put some two sided tape on that spot and shot.  small pieces of feather were left on the tape after just one shot. I then repeated the process with the same results. indicating that I am hitting that spot!  so at least I now know where I am hitting and I must be getting a false high.

Also I do have two tied on nocks.
Title: Re: arrow hitting riser?
Post by: Bud B. on July 09, 2013, 04:24:00 PM
I think you'll get it. Keep us posted  :)
Title: Re: arrow hitting riser?
Post by: macbow on July 09, 2013, 05:31:00 PM
One thought is on your form. Is your shooting elbow in line with the shaft at full draw?
I have had the experience where a,really high elbow caused enough pressure on the string to,actually put a bend in the shaft at full draw. All sorts of,contact on shelf results.
Title: Re: arrow hitting riser?
Post by: runningbird on July 09, 2013, 08:40:00 PM
I have my nock just under a 1/2" and still hitting the riser on the back side.  Thru paper it shows just a bit nock high.  Arrow is still kicking a bit.  Do I keep going with the nock?

thanks
Title: Re: arrow hitting riser?
Post by: Bud B. on July 09, 2013, 08:43:00 PM
Some bows, if tillered for split, will have a higher nock point if shooting three under. Some as high as 3/4" or more.

Keep going and see how it goes.
Title: Re: arrow hitting riser?
Post by: runningbird on July 09, 2013, 08:53:00 PM
Thanks again Bud, I'll keep moving on up!
Title: Re: arrow hitting riser?
Post by: LookMomNoSights on July 10, 2013, 09:47:00 AM
Here's one for ya.....your arrows are WAY too stiff, my man!!!  You should be shooting a 3555!  Just sayin'!   :saywhat:
Title: Re: arrow hitting riser?
Post by: runningbird on July 10, 2013, 11:18:00 AM
well I wondered about that,  But the Stu calculator said they were dead on so that's what I went with.  not to mention the 3555 are only 30" long and I draw just a hair over 30"
Title: Re: arrow hitting riser?
Post by: LookMomNoSights on July 10, 2013, 01:21:00 PM
Hmmm.....I know I buy the .006's (which supposedly arent as straight)....but I want to say you can get the .003's in 32" length?!  Dont quote me,  I could be wrong on that....
You can always load the front up on what ya got and see if anything changes....maybe if you get closer to 275 - 300 on the point,  you might see your problem go away ......
Title: Re: arrow hitting riser?
Post by: LookMomNoSights on July 10, 2013, 01:26:00 PM
I was just checking.....3555 max length is 30.5......bummer!  More weight up front I guess!
Title: Re: arrow hitting riser?
Post by: 4 point on July 11, 2013, 12:39:00 AM
That's a odd place to see contact, usually you see it on the very outside edge of the shelf. Could be a form issue. A feather rest would most likely solve the problem.
Title: Re: arrow hitting riser?
Post by: runningbird on July 11, 2013, 08:37:00 AM
what is a feather rest?
Title: Re: arrow hitting riser?
Post by: 4 point on July 11, 2013, 09:00:00 AM
A very simple elevated rest, just a few feathers glued together. They are cut into a half oval and attached backwards on the arrow shelf. If you do a search you should be able to find some pics and someone on here that makes them. You can make one yourself also.

It seems longer draw guys have more problems with shelf contact for some reason. I draw 31"s, I've tried everything and I cannot shoot of the shelf with any of my bows.
Title: Re: arrow hitting riser?
Post by: runningbird on July 30, 2013, 05:31:00 PM
Just a follow up.  Started from scratch, and ended up moving the noc way up. arrow was still hitting the riser but not near has bad. also went to 225gr points and that help some also.  Then I got a feather rest and tried that and readjusted the noc. everything is much better now. no riser contact, quite bow and bare shafts hitting very close to fetched at 25 yards or so.  Broadheads are shooting good too.  Also tried some AD traditional and set them up similar and they shoot even better.

thanks for all the help!

Mark
Title: Re: arrow hitting riser?
Post by: bigiron on July 30, 2013, 06:46:00 PM
try a 35-55 anyway just to see. you need to have a wide variety of spines on hand to try to see what works for you.
Title: Re: arrow hitting riser?
Post by: runningbird on July 30, 2013, 07:06:00 PM
the 3555 are too short.  My wife shoots them and I gave them a try, Just too short with my draw.
Title: Re: arrow hitting riser?
Post by: 4 point on July 30, 2013, 07:46:00 PM
Glad you got them flying true Mark. Nothing more frustrating then not being able to tune a bow.