How do you use a multi powered scope

caster456

caster456

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How do you use a multi powered scope say a 3x9x40?
Do you sight in at 100 yards on powed 9 or would you sight in at 100 yards on power 4-5?
When you have the scope sighted in at a certent power say power 9 at 100 yards if you were to lower the power to 4 would you be sighted in at 50 yards?

Sorry if this is a stupit question but i was just looking for a little help.

Thanks C
 
Most scopes will let you site in at whatever distance and wont change the point of impact when you change the power setting. Some scopes have a reticle that has distances marked on them and these would change when you change the power setting.
 
The zero should remain the same, but you should shoot it to verify. Some variables won't hold zero throughout the power range which makes them either:

1) Broken
2) Junk
3) Broken junk

Same goes for repeatable, accurate adjustments.
 
old (40's, 50's) scopes would shift the POI when the power was adjusted. another problem with the old ones, is as the power was magnified, the image AND crosshairs got bigger. modern scopes have the recticle behind the knobs, so as to solve that problem.
 
Gallen270,

There are two schools of thought on the reticle staying the same size relative to the image, and one of those schools thinks of it as an advantage. A first focal plane scope with a mil-dot works equally well at every power for instance. That's not a disadvantage. Europeans are fond of hunting at night, and a reticle that seems to be getting bigger and blacker when the power is turned up is an advantage.
The list of cutting edge Euro scopes with first focal plane reticles is rather large, and many of these are widely regarded as the optically best and most expensive scopes made, bar nothing.
 
Dogleg said:
Gallen270,

There are two schools of thought on the reticle staying the same size relative to the image, and one of those schools thinks of it as an advantage. A first focal plane scope with a mil-dot works equally well at every power for instance. That's not a disadvantage. Europeans are fond of hunting at night, and a reticle that seems to be getting bigger and blacker when the power is turned up is an advantage.
The list of cutting edge Euro scopes with first focal plane reticles is rather large, and many of these are widely regarded as the optically best and most expensive scopes made, bar nothing.
Click to expand...

:agree:
Leupold has also started a FFP lineup.
 
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