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Joined: Apr 2006
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Campfire Tracker
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OP
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On the Tract website it says the Toric scopes operating temp is 158 to -1.4 degrees. How they came up with 1.4 I don't know. I just talk to Tract online and they said the adjustments would get stiff at that cold temp everything else would work fine. My ? is for those who have on is, has this been a problem for you?
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Joined: May 2018
Posts: 97
Campfire Greenhorn
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Campfire Greenhorn
Joined: May 2018
Posts: 97 |
Have used mine well below freezing (0 degrees C) in the NZ mountains many times without stiffness or any problems. Maybe things do firm up a bit but I would expect the same from any scope. With gloves and layers on its hard to tell if there's any change - Ive not noticed any (power ring and parallax adjustments).
Last edited by NZSika; 02/13/20.
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Joined: Mar 2006
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Campfire Outfitter
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Campfire Outfitter
Joined: Mar 2006
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I would guess that Tract is referring to -1.4 def F, so closer to -19 deg C.
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Joined: Mar 2004
Posts: 7,124
Campfire Tracker
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Campfire Tracker
Joined: Mar 2004
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I think it is about the natural expansion and contraction of materials in extreme temperatures affecting the tolerances. I've had a Zeiss Conquest power selection adjustment totally stuck at about -15f.
You may want to call Tract to find if their referenced temperature is when the adjustment begins getting tighter, or after it becomes totally stuck?
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Joined: Aug 2015
Posts: 853
Campfire Regular
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Campfire Regular
Joined: Aug 2015
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So at -1.3 degrees the scope functions normally but at -1.5 it does not? Where do they come up with an off the wall -1.4?
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Joined: Apr 2005
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Campfire 'Bwana
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Campfire 'Bwana
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I would guess that Tract is referring to -1.4 def F, so closer to -19 deg C. So at -1.3 degrees the scope functions normally but at -1.5 it does not? Where do they come up with an off the wall -1.4? Jordan answered your question before you even posted.
I got banned on another web site for a debate that happened on this site. That's a first
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Campfire Tracker
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OP
Campfire Tracker
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I would guess that Tract is referring to -1.4 def F, so closer to -19 deg C. Yep figured they were talking F instead of C when I asked them the question..
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Joined: Aug 2015
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Campfire Regular
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Campfire Regular
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I would guess that Tract is referring to -1.4 def F, so closer to -19 deg C. So at -1.3 degrees the scope functions normally but at -1.5 it does not? Where do they come up with an off the wall -1.4? Jordan answered your question before you even posted.
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Joined: Aug 2015
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Campfire Regular
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Campfire Regular
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No he didn't. My question was why is it such an exact number? Not minus 1 degree or minus 2 degrees, but precisely minus 1.4 degrees.
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Joined: Apr 2005
Posts: 30,881
Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2005
Posts: 30,881 |
No he didn't. My question was why is it such an exact number? Not minus 1 degree or minus 2 degrees, but precisely minus 1.4 degrees. WOW, you have to be joking. Because it about -18 C Geez
I got banned on another web site for a debate that happened on this site. That's a first
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Campfire Regular
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Campfire Regular
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Ya know pure water freezes at 32 F not 32.1.
Alcohol, Tobacco & Firearms should be a convenience store; not a government agency.
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Joined: Apr 2006
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Campfire Tracker
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Campfire Tracker
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It hit me like a slap in the face when I was taking the kids to school. I guess I shouldn't type right after getting up and still sleepy.
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Joined: Jul 2016
Posts: 1,085
Campfire Regular
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Campfire Regular
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So at -1.3 degrees the scope functions normally but at -1.5 it does not? Where do they come up with an off the wall -1.4? because if they said -2 to 158 degrees, you people would lose your mind when it doesn't work at -1.4 degrees
Last edited by OrangeDiablo; 02/14/20.
I prefer dangerous freedom over peaceful slavery - Thomas Jefferson
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Joined: Apr 2006
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Campfire Tracker
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OP
Campfire Tracker
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How have you liked your Tract scopes. I am looking at the Toric UHD 2-10x42 BDC.
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Joined: Sep 2010
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Campfire Tracker
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Campfire Tracker
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So at -1.3 degrees the scope functions normally but at -1.5 it does not? Where do they come up with an off the wall -1.4? My guess would be that it is the actual value observed while conducting their testing.
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Joined: Feb 2007
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Campfire Regular
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Campfire Regular
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Ya know pure water freezes at 32 F not 32.1.
Actually it depends on atmosphere pressue.
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Joined: Feb 2007
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Campfire Regular
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Campfire Regular
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Flowing water can also be sub 32 deg F.
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