For most of us chasing that last little bit of accuracy is time and money wasted IMO. Learning to call winds accurately is where the big dividends are at. All the top shooters I've met had the ability to call wind in common.
I've shot the Sporting Rifle Match, F-Class and prone matches in Raton and my rifles are accurate enough, but my wind calling skills are lacking. My scores were decent when the wind died down or held constant, but when the wind is gusting my scores dropped.
