Drop away (d/a) arrow rests are not new - they've been around now for a number years. The early ones were, by nature, rather experimental but continual improvements have brought this style of arrow rest to the forefront as far as reliable and accurate archery equipment are concerned.
Just what is a drop away arrow rest? The name describes the action and functionality of this rest – drop away. This type of rest is usually in the "down" position until the archer is almost at full draw - it only comes to the "up" position and contacts or supports the arrow during the last four to six inches of the shaft length.
At the release of the shot, the reverse action happens - the rest supports and is in contact with the arrow shaft only during the first (and crucial) portion of the shot - that is the first four to six inches of arrow travel. Then the arrow rest "falls away" by means of spring action, and has no further contact with the arrow shaft allowing free and unhindered travel of the arrow.
What are the advantages to using this type of arrow rest? There are several obvious benefits in using a d/a style of rest over the more common type of spring steel or prong arrow rests. First and foremost is the increase in accuracy of the shot. Secondly there is the benefit of having virtually no fletching contact with the arrow rest as the shaft leaves the bow. Thirdly there is the increase in the speed of the arrow itself.
There are some things that just should not happen at the moment of arrow release – minor flinching or jerking, minutely dropping the bow hand, convulsively grabbing the bow grip, or fletching contact with the arrow rest all adversely affect the accuracy of the shot. The archer, through the arrow rest’s contact with the shaft, can impart these things into the arrow, as it travels from the bow. Also the longer the arrow rest is contacting the shaft during the shot, the greater the friction and drag that is imparted to the arrow, thus reducing the speed of the arrow.
The huge advantage of a drop away arrow rest is that before any of the above mentioned movements or issues could affect the flight of the arrow, the arrow rest has dropped away and is no longer in contact with the shaft. Also, by dropping away from the arrow shaft, the speed of the arrow is increase by a measurable amount, typically from two to three feet per second.
If the arrow rest is in contact with the shaft during the full cycle of the shot there is the real possibility of the archer introducing bow-hand torque at the moment of the release and adversely influencing the accuracy of the arrow as it speeds down range to the intended target. Optimally the archer does not want the rest contacting the arrow shaft for any longer than is necessary for that rest to guide the arrow on its way to the target.
Of course proper setup, tuning, and maintenance of the drop away rest is critical in getting the full benefit of all the advantages of this type of arrow rest. Fortunately today’s drop away rests are very easy to install, setup, and maintain. Many of them are “full containment” types, which is a characteristic much in demand by bow hunters everywhere.
Have a look at some of these drop away arrow rests on any one of these major retailer's websites…you may just pick up a few more points or bag that big one you've been after.
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Authored by: “Bow Walker” 10/18/2007