Here's a solid vote for Woodleigh Weldcore RNSNs for just about everything nitro-express in the field, with Taipan RNSPs or Bruce Bertram's conventional SPs for the dirt bank at the shooting range.

In Australia they are more available and less expensive than most US offerings. Even if that were not the case, I would still use Woodleighs exclusively on large/dangerous game as they consistently deliver "every satisfaction" in the hunting field!