but we made it a point to figure out which power setting we were using on a variable scope and left it there.
We've had an older Leupold 25X spotting scope - the straight tube ones from the '90's I want to say - and it pretty much refuses to focus if its below -15°C. Maybe with a pipe wrench it would, but I'd have to bring a more skookum tripod if I start packing plumbing tools, so it just stays in the pickup on cold days afield.
Much appreciated gents, on the trip I mentioned we were keeping our rifles inside the barn which was probably warmer than leaving them in the truck. It's good to know that adjustments can stop working, I have not read or heard very much about this.
Next time I hunt extreme cold I will set my variable to about 4 1/2 power.
Happy Hunting,
