Yes, the wind DOESN'T care how much $$ is spent on guns, scopes, rests, etc. I good wind flag is mandatory, and trying to read the wind is almost as much art as skill!
That being said, the best wind reader CAN'T shoot well with a hinky (Caldwell or plastic) rest, loose or cheezy (BSA, CURRENT Tasco or any Chinese) scope, or a weak rifle.
That being said: You DO NOT need a $4000.00 rifle, $1000.00 - 45X scope and a $1000.00 rest & rear bag to win, or @ least get in the $$.
Last weekend I shot a 250-11 X.
1956 Winchester 52C, a late 70's Redfield 3200 - 24X scope, SEB Rest & rear bag.

One of 5 match targets, 50 - 4X

5-shot Practice group @ 50 yards, Wolf Match Extra

SEB Rest & SEB rear bag (Himmerli .308 w/ Redfield 3200 - 24X scope)
