Question -zeroing a thermal scope in the daytime?

We use a long bolt pushed in cardboard then heat the bolt with a torch. Nice small target to aim for. Do this on a cloudy day and turn your thermal brightness up and you should be able to sight in no issues.

We reheat the bolt every time we go down to check the target group. Work great and keeps you hand warmers for you hands
 
Target (foot warmer missing) 50 yds 110gr vmax BO 10" pistol off caldwell bipod. Plus is middle of warmer corrected to 100 yds. (2 shots). Aimed a s close to center as possible. Rattler V2 35-640. A pixel @ 100 is one inch. So I'm off maybe 2 pixels horiz and one vert?
pistil ir 50.jpg
 
This is a picture of a sheet of plywood viewed through thermal on my range. The white spot is an ice cube in a plastic bag. The small black dot above it is a fresh bullet hole. The large black spot is the end of a lit cigarette.
 

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Me thinks my point is missed. 640 res one pixel is about an inch @ 100 yds. You can't get more accurate than the resolution! At 50 yds that would be 1/2 inch! If a yote is looking right at you, approx 4 inches wide @ 400 yds., that's one pixel! Yes, the scope can do jpeg and look is better but still ONE pixel.
 
popper43 said:
Me thinks my point is missed. 640 res one pixel is about an inch @ 100 yds. You can't get more accurate than the resolution! At 50 yds that would be 1/2 inch! If a yote is looking right at you, approx 4 inches wide @ 400 yds., that's one pixel! Yes, the scope can do jpeg and look is better but still ONE pixel.
Click to expand...

A 640 x ? pixel thermal imager refers to the size of the thermal imagers sensor. Each pixels detects heat. Once processed, the display screen pixel resolution determines how the processed thermal image appears. The image sensor pixel size and the display resolution pixel size are two different pixel dimensions.
 
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