Hey all, I'm new rather new to bow hunting and this form, have done a bit of reading never posted, but have come across an issue with broad head tuning my bow. My board head hits low and left of my field points and the suggested adjustment is to move the rest one notch right, the issue is the rest is already as far right as it can go what would be the next course of action? Thanks
your next move would be to paper tune the bow and see where you are if you are not shooting a perfect bullet hole then without a doubt you will leave the broadhead catching air that will pull it away, what broadheads do you shoot? maybe try a few different kinds and see what shoots well out of your set up?
Sorry should have included this info it's a Mathews z7 set to about 54 lbs with basic tru glo five pin sight and a whisker biscuit rest shooting Easton St. epic .400, blazers and 100 grin fp and 100 grain Magnus stinger broadheads. I currently don't have to ability to paper tune past 10 yards but so far it shows good bullet holes. It was at 20 yards I was trying to broadhead tune and came across this issue.
I would say it could be a few different issues. I would set the rest back to factory centershot and go from there. Bow may need yoke tuned. Make sure you draw length is good. My athens kept shooting broad heads to the right until I lengthened my draw a little, left handed. Could also bethe broad heads. What length arrow? Could also be spine issue.
Thanks for the help so far. From what I can tell it is still on centre shot an the yoke is also good. I have not adjusted it since I acquired it from the shop where I purchased it, but as I mentioned and the article linked says I need to move the rest to the right, unfortunately the rest is already as far right as it allows. Does this mean I should look at getting a different rest or is there some other adjustment I'm missing?
I'm not too familiar with Mathews but most of the are built to a 13/16" centershot. I would measure it to see where you are at. Your rest should not moved all the way out to the right if it is at the factory spec. These specs are a good starting point but should not vary too much side to side, about a 1/16" either way unless something else is going on.
Thanks for all of the help Sean1, I'm now wondering when starting with it in center shot and adjusting the rest for broadheads does this mean you are putting the bow out center shot?
Not really. More like fine tuning your centershot. But, if you have cam lean at full draw or a form issue like a draw length that isn't right there might be no amount of movement to the rest to compensate. You may want to set your rest to 13/16" and paper tune your bow. This would be a start in the right direction. Then try broadhead tuning. There is a great thread on archery talk from nuts&bolts about bareshaft tuning. It is a great piece of information.
It was at the 13/16" centershot the whole time when paper tuning and everything with the field points it right was right on the mark. Its a restriction with the wb rest the size of it only lets it move a very slight bit to the right then the edge of the rest is against the riser. Another Question is if everything is on tune, cam, yoke, centre shot, paper tune shows bullet holes, and the broadhead tuning shows the rest needs movement will that not throw off every thing that was in tune? The broadheads are now on the mark but the field points now hit to the right...
Not necessarily. Sometimes a movement of 1/64 or 1/32" can be all that is needed. A fletched shaft comes out with the vanes correcting anything that went wrong as the arrow left the bow. The vanes have setting steering abilities, but so does a broad head. Something is making your broad heads want to leave the bow slightly to the left of true. Or at least this is my opinion based on your results. How long is your arrow? Broad heads will also point out form issues if you are torquing the bow at all. My bow was shooting decent groups with field points and the rest was almost a 1/4" out from factory specs. Put a ramcat head on. Not even close. Got my draw length right. Adjusted rest and they fly together with field points out to 50 yards. Field point fouls are tighter as well. Since my bow is a two track cam system I have no yoke so draw length being near perfect and rest adjustments is about all I can do. It could be the heads but if they are grouping together to the left I doubt it.
Well thanks a lot again. Like I said I got a small adjustment out of it and the broadheads line up but the field points are off. I'll keep searching and tinkering. Tricky issue to rap the head around but I appreciate your help.
No problem. Let me know if I can help you further. The kitchen sink tuning method by nuts&bolts on AT is really good. If you can get a bareshaft to fly with fletched arrows you've pretty much got everything perfect.
