Each segment of Benchrest shooting has specific needs. My personal experience in Benchrest shooting, and building my own Benchrest rifles, gives me the insight needed to build a rifle to your specific needs.
600 yards, and 1,000 yard Benchrest rifles must track well. When you fire a shot, you must be able to push the rifle back up and have it on target. Nothing replaces a rifle that tracks well. Not having to put the rifle back on target is critical.
Cartridge selection considerations include precision, ballistics, heat management, and shooting speed.
In short range Benchrest where sighting shots may be taken between score shots how the rifle handles is critical. Recoil management with a 10.5lb. or 13lb rifle is important. Comfort and control are key factors. Match this with a rifle that you can tune on the bench and you have a winner.
Rimfire Benchrest is a tuners game. With rimfire, the ability to tune the rifle with ammo , and with adjustments at the range is important. This is an area where the little things really matter.