How to mount an arrow rest-Question

[TEAM SHARK]

Guys:

I have a new bowtech destroyer 340. The riser has two holes to mount the arrow rest. I plan to use a standard type rest (Nap Quicktune 360), do I mount it using the front or rear mounting hole. It looks like the front hole is more in the middle of the riser. Also, explain the phylosphy behind your answer.

[agtex42]

Depends on your arrow length and broadhead clearance on your riser. A good rule of thumb is to allow at least 1 - 1.5" between your insert and the point where your shaft contacts the rest to insure you get the correct dynamic reaction when you unload the stored energy into the arrow. If you're shooting large diameter broadheads that aren't able to clear your riser than I'd shoot off the forward most Berger hold to put you inside the aforementioned range. If your broadheads clear then shoot off whichever hole gives you the proper distance at your arrow length.

[TEAM SHARK]

I thought you always wanted your arrow length to extend 1 to 1.5 inches forward of your riser for safety regardless if your broadhead is able to clear your riser?

[TEAM SHARK]

If this true, then I assume that I should mount my arrow rest so that is in the middle of the riser?

[Coach W]

It is nice to have have your bh forward of your riser. I was pig hunting one night and drew on a big boar three times, each time my arrow came un knocked. I finally figured out the silencing tape had come loose a bit and my broad head was catching on it, making it un knock. I had to get out my knife and cut it off to finally take the bruiser. Made for some tense moments.

[bowhuntntxn]

No.Your arrow can be inside the shelf if you choose to. 1-1.5 inches in front of the riser will make tuning the bow fairly difficult IMO. Use the rear Berger hole, and if you need to add a second set screw to keep the rest from moving, then you can use the first hole. Second is the one nearest the string, or back of the riser. Your rest will need to be just behind the riser and your arrow should/could be just in front of where it sits on the rest.

[Meatatarian]

No.Your arrow can be inside the shelf if you choose to. 1-1.5 inches in front of the riser will make tuning the bow fairly difficult IMO. Use the rear Berger hole, and if you need to add a second set screw to keep the rest from moving, then you can use the first hole. Second is the one nearest the string, or back of the riser. Your rest will need to be just behind the riser and your arrow should/could be just in front of where it sits on the rest.

X2 on that!!!!

[Bill]

A good rule of thumb is to allow at least 1 - 1.5" between your insert and the point where your shaft contacts the rest to insure you get the correct dynamic reaction when you unload the stored energy into the arrow.

I've never heard or read this before. Are you saying there is something that changes in a 'dynamic reaction' on the shaft that is a function of having an insert glued into it? The arrow shaft flexes from the middle upon release, I don't think the very ends flex much, if at all- but I'm only guessing. New concept to me.

On my bow I coincidentally do this, but that it to keep my broadheads out in front of my left hand holding the bow, having a razor sharp broadhead over my hand in the middle of the shelf scares me at full draw. True, it adds a little weight to my arrows, but I'm shooting 500 grain CT Rhinos in my compound for hunting (I like a heavy arrow because I believe penetration is determined by momentum, and not kinetic energy).

To answer the question, my opinion is the closer to the middle of the riser the arrow is in contact with the rest, the less effect any torquing or inadvertent twisting you do holding the bow (bad) after release has on the lateral accuracy. The further from that point, the farther to the left or right the rest moves if you torque the bow. I'd try to install the rest in the hole closest to the target if it fits and everything flexes without interference, otherwise the hole closer to you when shooting.

[agtex42]

The Easton tuning guide has a brief section that touches on arrow "nodes", now I'm by no means an expert on this and for lack of a better way to explain my limited understanding of the subject I'm going to attach someone elses explanation.

"The arrow as fired from a release fired compound bow, the midpoint of the shaft will flex upward to start with. If the front node is too far behind the launcher then the tip will dig into the launcher and cause it to fall. If there is no spring action in the launcher like most drop aways then it will springboard off the launcher before it has had ample time to get the required guidance from the rest to help steer it toward the target in a repeatable and accurate manner.

Having some arrow length in front of the launcher will allow the tip to dip down into the air space above the riser shelf. This allows the launcher to guide the arrow more as the length of shaft and allow for proper initial steering of the arrow.

Thus this setup will add forgiveness into your arrow and arrow flight."

Sorry for getting so far in the weeds but it makes sense to me, hope it helps.