A plunger is a simple device that is basically a spring in a cylinder that
acts much like a shock absorber. You can do several things with it but most
bows need to be set up with an elevated rest although some bows have been
built to use a plunger while shooting off the shelf. It does several things..
It can help you adjust the centershot of your bow. Second, because it has an
internal spring that can be adjusted, it actually acts like a shock absorber
for your arrow. When you shoot. By adjusting tension on the spring it can
help you to fine tune your arrows so that there is no question about spine.
In addition, the plunger can help minimize some errors you may make as you
release your arrow and thus improve accurate shooting. Most come with
various spring weights so that you can use them for all types of shooting
as most archers shoot lighter arrows for target applications and other use
heavier arrows for hunting. I use one all the time on my hunting bow and
have my wife¹s set up with one, as well. For me, it helps to really fine
tune the arrow to the bow and I consider having one essential. There is no
downside to using a well made one. Be sure the cylinder and spring are made
with materials like brass and stainless steel and there will never be a
problem with it freezing up or rusting.
Answered on 11/13/2013
Bill from Epping, NH