Brace Height

[Scattergun2570]

I understand that you can adjust brace height to move your POI left or right. I was just wondering how much you can expect to change the POI by a brace height adjustment. I wouldn't imagine that it is very much. Any thoughts?

[Scattergun2570]

bump

[old_goat2]

I'm surprised some of the smart guys haven't answered this, I personally have never heard, read or experienced changing brace height effecting POI left or right. I've had my brace height get too low and effect arrow flight badly, fishtailing arrows while shooting broadheads, it can also effect how loud a bow is and make me smack my forearm with the string, but I've never noticed it changing my impact left or right. Just my experience though.

I don't know about how much it would change POI, but raising or lowering the brace height can be used as a tool for fine tuning a bow/arrow setup. If you are tuning a bow/arrow combination and get real close, but not quite perfect, you can raise or lower the brace height to get everything just right.

If your arrow is just a tad too stiff, you can lower the brace height to make it perfect. If it is a tad too weak, you can raise the brace height to make it just right.

Bisch

[Scattergun2570]

Originally posted by old_goat2:
I'm surprised some of the smart guys haven't answered this, I personally have never heard, read or experienced changing brace height effecting POI left or right. I've had my brace height get too low and effect arrow flight badly, fishtailing arrows while shooting broadheads, it can also effect how loud a bow is and make me smack my forearm with the string, but I've never noticed it changing my impact left or right. Just my experience though.

Apparently,Ken Beck of BW bows has done a lot of work on this subject..there is even a video out there he made talking about this..and probably other tuning procedures.. I haven't personally seen the video,but I know people who have it.

[Pine]

POI left to right is adjusted with the canting of the bow . Brace height can change the poundage which could cause spine differences . Brace height should be adjusted for noise and performance and knock point for porpoising . spine weight for arrow flight . Canting for point of aim left to right .

[McDave]

Most of us who usually shoot at unknown distances over uneven terrain are happy if we can shoot an arrow into a softball sized target at 20-30 yards, because that's a kill.  The tuning necessary to accomplish this is summarized nicely by Graps.

However, there are higher degrees of tuning, if you're interested, which include adjusting brace height, silencer type and location, and arrow rest/strike plate type and thickness, to achieve an even higher degree of control over POI.  These adjustments all affect the dynamic spine of an arrow, which affects its POI.

Obviously, perfecting your form comes first, followed by the more fundamental aspects of arrow tuning, but when these are mastered, there are other things you can try.

[olddogrib]

I don't know about changing POI, unless you're referring to the slight change in relative arrow spine from changing brace.  And last time I brought it up, there were two opposing schools of thought on that.  Those that thought on limbs with a lower brace the tips would have a slightly longer linear distance to travel on the power stroke and thereby make an arrow act relatively weaker.  The rest point out that on a lower braced bow the arrow has to leave the string later and require relatively more paradox to "wrap around the riser, thus making the arrow act slightly stiffer. And if I explained this incorrectly, somebody straighten it out. All I know is it fried all my synapses last time I tried to comprehend it and I had to go have a beer!

[katman]

Originally posted by McDave:
Most of us who usually shoot at unknown distances over uneven terrain are happy if we can shoot an arrow into a softball sized target at 20-30 yards, because that's a kill.  The tuning necessary to accomplish this is summarized nicely by Graps.

However, there are higher degrees of tuning, if you're interested, which include adjusting brace height, silencer type and location, and arrow rest/strike plate type and thickness, to achieve an even higher degree of control over POI.  These adjustments all affect the dynamic spine of an arrow, which affects its POI.

Obviously, perfecting your form comes first, followed by the more fundamental aspects of arrow tuning, but when these are mastered, there are other things you can try.

x2      

I will add brace height adjustment will move poi for bareshaft much more noticeably than fletched shaft. Exactly how much will vary with your setup and how close to tune you are. Also the amount/weight of a specific string silencer not just type and placement can be altered to finely effect tune.