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which zeiss for my 270wsm

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/17/2009 at 17:03
billiam13 View Drop Down
Optics Apprentice
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 I am shopping for a new scope for my 270wsm. I will be useing this gun for deer and elk hunting. I will also do some paper plunking in the 800 -1000 yard range just for fun. I am going with the conquest 800 rapid z in either 4.5x14x44 or the 4.5x14x50.   My question is what is the advantage to the 50 mm objective. I mean it doesnt let any more light in does it? I know it will cause me to have to lift my head up higher giveing me a weaker cheak weld.   SOOOOOOOO whats the scoop guys I need some help fast so that I can pull the trigger soon.       Thanks
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/17/2009 at 17:46
Trays 7940 View Drop Down
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50mm lets in a bit more light, yes and is more effective during low light shooting. 
Think of the objective lens as a funnel, a light gather.  The higher the scope's magnification, the larger the objective lens should be to have enough light for most situations. 
The exit pupil of any scope, ideally, should be between 4mm and 8mm, this coincides with the diameter of your eye's pupil in low light.  The exit pupil of a scope is found by dividing your objective diameter by your scope's magnification. 
example:  50mm / 4.5mm = 11.0mm    50mm / 14mm= 3.5mm
                 44mm / 4.5mm = 9.7mm    44mm / 14mm = 3.1mm
This way you can see estimate a brighter scope, to an extent.
Sometimes the difference isnt enough to compensate for the cost, sometimes it is. 
 
I love the 50mm lens and most of my rifles have one on them.  In fact Iam looking at the same scope 4.5 x 14 x 50 for a 7mm Magnum I am going to build.  Hope this helps! 
Good Luck!  Bandito


Edited by Trays 7940 - November/17/2009 at 18:09
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/17/2009 at 18:28
billiam13 View Drop Down
Optics Apprentice
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so you defanitely say go with the fifty in the conquest, and the price difference is worth it right?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/18/2009 at 15:22
lucytuma View Drop Down
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Yes the 50mm will gather more light, but I dought it will offer an great advantage over the 44mm scope, either is a fine choice IMO.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/18/2009 at 16:05
Rancid Coolaid View Drop Down
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I'll give you a pass on the "gather more light", no use beating the proverbial dead horse.


I had the 44mm version and never felt that lack of light prevented a shot.  I even used it to take a shot in almost pith black - at a jet black hog, with jet black backdrop, in the jet black of night, with jet black reticle.  And I (somehow) hit it, double-lung.

The 44 will sit lower and do everything you need.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/18/2009 at 16:09
Trays 7940 View Drop Down
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I just like the 50mm.  In your situation, I don't think it will have that much difference.  Either scope will work well for you.  Look at one, if you can, and see which one you like the best- always the best way to go.
Good Luck!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/18/2009 at 16:37
lucytuma View Drop Down
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RC, I totally agree, if you can't see it with the 44mm, I doubt the the 50mm is going to change anything.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/18/2009 at 16:39
trigger29 View Drop Down
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X = 180 Y = 90 (X+Pyro)+(Y-Pyro) = ?

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I went with the 44, and shot a deer that I could only see through the scope. I wouldn't have seen her with the naked eye. I don't think the 50 would have been enough to make a difference, but to each his own.
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