What do you mean by "long range"? Are you shooting targets, or are you hunting?? Both of these have an influence on what's best.

The 168-grain Sierra Matchking is used the most for competiton shooting out to 300 meters. Beyond that range, the 200-grain, 220-grain and 240-grain Matchkings take over. The 240 requires a twist faster than 1/10", however.

However, if you are talking about hunting, a 190 or 200-grain spitzer boattail softpoint would be about the best you could choose, as it bucks wind better than anything lighter. I'm talking about 500 yards and beyond. Anything less than 400 yards is NOT long range......