I agree 100% with rscott5028 on this one....I am on my second shooting chrony after getting better than ten years out of the first one.....
The shooting chrony is very accurate and can be confirmed with actual field drops within reason in most cases..It is an invaluable tool for load developement.....But, bright sunlight & low sunlight angle have given me poor results in the past with large variations...I had quit using it on bright sunny days altogether for that reason....
But since I have discarded the factory sun shades and built a large adjustable sunshade over my chronograph stand...Results now are very consistent from day to day with most forms of light conditions...The shade is a piece of 2 ft. x 2 ft. x 1-1/2" thick "pink" styrofoam, supported on 4 adjustable legs...Allowing the shade to be set at most angles to avoid direct sunlight across the "eyes" and bullet path....Now only the steepest "late in the day" sunlight angles seem to affect result consistancy...
I just read an article about a "box" a guy put over his chrony with an artficial light source.....This looked great, I may experiment with this soon.....
For an entry level chronogragh the Shooting Chrony price is right if you understand and can live with its limitations....
Randy