Re: Barr & Stroud Rangefinder
I have a Wild , I'm assuming they are the same.
How accurate are they really?
Dead nuts. But it gets tougher the farther you go out. (less resolution of the hash marks) Still I trust it more than any laser past 1K or through brush and trees. I have verifed mine out to 1350 using rangefinder and surveyors prism.
Any tips you might have for using one?
Have the most precise person with you do the ranging. If he has ever said "That's close enough", he ain't the guy.
Adjust the edge of the inverted image to exactly touch/mirror/dissect the straight up image.
I close the eye displaying the range and then align the smallest item that you can clearly see at the range. Pick a odd color leaf, Woodchuck head (my favorite), small flower, deer leg etc, rather than a big tree or something that seems easy. When I got it right I open my other eye and go click it in.
Range from farther than target and then from closer than target. If you get different readings always adjust from one way consistently to eliminate backlash error. Oddly I haven't noticed any with mine.