Changing scope magnification ?.

[samboy]

Hi gang.

               If i zeroed my .22 rimfire in at 50 yards on 6 and then put it on 16 would the poi be the same ?.

               I have had different answers. Some say yes some say no. 2nd fp.

                                                                                                           Thanks all.

               

Edited September 9, 2022 by samboy
Added a bit.

[manthing]

Depends if its a first focal plane scope or a second focal plane scope.

Don't ask me to explain it any more than that. Lol.

[Newbie to this]

Your crosshairs will be the same poi, but any milldots etc will be different (unless FFP).

Edited September 9, 2022 by Newbie to this

[Newbie to this]

 

Couple of screenshots from my Strelok app, one at 16x and one at 24x, as you can see the crosshairs stay the same, but the milldot distances change.

[THEINVISIBLESCARECROW]

No idea, I stick to 10x for .22lr shooting between 50yds to 120yds. At the range I might drop to 8x if shooting at 20yds but mostly stay at 10x I use a sfp Bushnell & prefer to keep everything simple, staying on 10x all I have to do is use milldots for different ranges. I find the bullet drop after 120yds too much so 120yds is my max. I set up so poi is the top part of a 1" dot at 50yds so it's on aim for 60yds, roughly the same at 20yds so at the range 20yds is closer to change targets. Poi at 120yds is 1.5 to 2 milldots down from center. 

[oldypigeonpopper]

Hello, to follow on from manthing, a first focal plane scope, magnification will enlarge or decrease the size of reticule, a second plane scope the reticule stays the same, the best way on your scope is to do some tests and see if poi changes, I use a dedicated hawke rimfire scope in summer save having to worry on hold over 

[Rab19]

 

 

Watch the video from 3.40 onwards.

 

 

[Ultrastu]

21 hours ago, samboy said:

Hi gang.

               If i zeroed my .22 rimfire in at 50 yards on 6 and then put it on 16 would the poi be the same ?.

               I have had different answers. Some say yes some say no. 2nd fp.

                                                                                                           Thanks all.

               

The zero will be the same on both magnifications .Where things can alter is if you adjust the parrelax especially a front objective lens px adjuster .the lens can often not be perfectly  ground or sit slightly twisted in its carrier  this can move the image of the cross hairs  in your scope .a side parrelax  scope reduces this phenomenon  massively. 

Some scopes need some parrelax  adjustment on different magnifications .I have a pair of binoculars that are like that  zoom in and they go out of focus so need refocusing to the higher mag .so try to avoid any px adjustment  when zooming  .

[Dougy]

In most if not all quality scopes you will have zero shift when changing magnification. 

With scopes of less quality you will possibly get slight shift in zero. 

And Dont forget the higher the mag the increase on your perceived movement on target will be magnified, on very high mag scopes the reticule will move with each heart beat. 

[Lloyd90]

On 09/09/2022 at 16:51, samboy said:

Hi gang.

               If i zeroed my .22 rimfire in at 50 yards on 6 and then put it on 16 would the poi be the same ?.

               I have had different answers. Some say yes some say no. 2nd fp.

                                                                                                           Thanks all.

               

Unless it’s a really cheap and rubbish scope the change should be minimal, especially at that distance. 
 

As others have said I wouldn’t go messing about with focus etc too much. 
 

With a second focal plane scope, the zero should stay pretty much consistent, however if you have a reticle with any sort of drop adjustment (mildots or the hawke calibre specific reticles for example) then the amount of drop on each hash will absolutely be different on different levels of zoom. 

[Walker570]

Another dedicated  Hawke scope on my Browning.   Zeroed at 50yrds on full magnification and never noticed any variation within my normal shooting ranges. Things keep falling over.    

[old man]

On 14/09/2022 at 22:25, Dougy said:

In most if not all quality scopes you will have zero shift when changing magnification. 

With scopes of less quality you will possibly get slight shift in zero. 

And Dont forget the higher the mag the increase on your perceived movement on target will be magnified, on very high mag scopes the reticule will move with each heart beat. 

And I miss more often.

[enfieldspares]

On 09/09/2022 at 16:51, samboy said:

Hi gang.

               If i zeroed my .22 rimfire in at 50 yards on 6 and then put it on 16 would the poi be the same ?.

               I have had different answers. Some say yes some say no. 2nd fp.

                                                                                                           Thanks all.

               

ZERO at 16x then, yes, in a good 'scope the POI will be the same at lower 6x and etc..

[Dougy]

5 hours ago, old man said:

And I miss more often.

Could have something to do with eye sight too that. 🙃

[old man]

On 17/09/2022 at 15:21, Dougy said:

Could have something to do with eye sight too that. 🙃

Mm, true but crank up the magnification too much for the task and it's generally bad news for me.