Originally Posted by Jordan Smith
I would guess that Tract is referring to -1.4 def F, so closer to -19 deg C.


Originally Posted by Plumdog
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