I use the quick eyepiece

[Bad Bob]

on some of the new scopes such as the Bushnell Trophy and others..  I have learned from airgunning that the Bushnell trophy line of scopes is about as good as it gets.  Ime thinking of putting one on a .223 youth bolt rifle. I don't think parallax is a problem because it has an AO and  the airgun scope will focus down to 33 ft.  Anyone know of any problems in doing this?    
Anyway the quick eyepiece on some scopes, my Bushnells have it, works great to focus on the target  by turning the eyepiece on the rear of the scope.  Much quicker and easier that the AO on the other end of the scope.  My kids use the scope with the eyepiece turned all the way in and mine is almost all the way out.  IMO tanks and Semper Fi.

[Major]

While I am not a scope expert, I would say don’t do it.   I know that the type of recoil and vibrations felt between an air rifle and a firearm are different. The scopes are designed with different requirements in mind and I have heard of guys having their scopes break when switching them like that.

[quickdtoo]

The quick focus ocular lense is to focus the reticle only, the AO on a scope is used to focus the image for distance and to eliminate parallax.

Focusing a telescopic sight

It is surprising how many people do not know how to focus their rifle scopes. The idea is to focus on the reticule (crosshair), not some object in the distance. To focus a scope, set it to its highest useable power and go outside. Point the scope at a blank area of sky. Turn the ocular bell housing (the end closest to your eye) until the reticule appears to be perfectly sharp. Tighten the locking ring and your scope is focused to your eye. You will not have to change it unless your vision changes.

http://www.chuckhawks.com/optical_sights.htm

http://rimfirecentral.com/forums/showthread.php?t=24915

[Fred M]

The eye piece or ocular lens focuses the human eye to the reticle. Once the reticle is sharp with your vision there should be no further need for adjustment.

The AO or ojective lense adjust and focuses on the target once adjusted to the distance the image is sharp and suposedly without parralax.

Both these adjustments serve a different purpose. The rear ocular quick adjustment was designed for the Europeans because they shoot mostly at night when your eyes pupils are dialated. In that case you can quickley adjust the rear eyepiece one or two diopters plus or minus to adjust for night vision.

For ordinary daylight shooting there is no need for the quick adjustment.
In my opinion this qick adjustment adds only complexity and bulk.
The standard lock ring for 99% of applications is peferable since it can not move with lens caps or just someone  playing around with it.

I have two such scopes a Kahles and lately a Bushnell 3200  on both these I have put a small dot of yelleow paint to mark my setting and never touch them. While the Kahles move with the lense caps on occasion the Bushnell is quite ridgid

[quickdtoo]

Fred, I mark all of mine so I know in an instant where my focus settings are, that includes my binos, too! :grin: Great minds think alike!!! :wink:

[Major]

As I said I am not a scope expert, I just saw that he was talking airguns and a .223 and I have heard to not mix the scope types.   I am glad you guys were able to address the focus issues.

[Bad Bob]

While I am not a scope expert, I would say don’t do it.   I know that the type of recoil and vibrations felt between an air rifle and a firearm are different. The scopes are designed with different requirements in mind and I have heard of guys having their scopes break when switching them like that.

My experience has been the other way.  You can put an airgun scope on a high power rifle but don't even think about putting your Leopuld on my airgun....Tanks.

[Major]

Bad Bob,

You are probably right.   I did not say which way to do a switch and had just heard not to do it at all.   I just wanted to make sure you knew there was a difference in the scopes and you do know about that, so that is all I was after.

Enjoy your shooting.

[Bad Bob]

Bad Bob,

You are probably right.   I did not say which way to do a switch and had just heard not to do it at all.   I just wanted to make sure you knew there was a difference in the scopes and you do know about that, so that is all I was after.

Enjoy your shooting.

Thanks,  A lot of people are unaware of the beating an airgun gives a scope.  I am told the airgun scopes are stronger as the lenses are pinned on both sides instead of one as on hunting scopes.  The Bushnell trophy rules the airguns and I think Ill put one on a .223 I'me puttin together.  There was one on the forum last week for l30$.  Just turned 60 and can't   take l2 ga or even .243 recoil anymore.  Still shootin...

[Major]

Snip...


Just turned 60 and can't  take l2 ga or even .243 recoil anymore.  

I am 59 and know exactly what you are saying here.    

There are a few older guys that can still take it and they don't know how lucky they are, do they?