A note about glare

Other day I played hooky from cleaning the house and, the temp being decent(even if the wind was a bit strong), headed to the range for a bit.

Which brings us to glare: on this target I noticed the glare, but went ahead and fired the first two shots, then decided it was annoying enough to do something about.  A piece of pasteboard(end flap from a cartridge box) was used to rig a sunshade, after which I fired the next three shots.  Top two were the first

A: That's quite a bit of difference.
B: That load will do