Wolf Match Gold supposedly looks the same as Lapua Midas and SK Jagd Match Gold, and the bullet diameter suggests it is the same size as the 'M' Lapua bullets. The Match Extra and Match Target appear to be using the same bullet as the Lapua Super Club, but it sounds like they've got different powder than the Lapua Super Club does. They're all made in the SK Jagd factory in Germany, but that doesn't necessarily mean the same 'ingredients' go into each one, which probably accounts for the different powder grades. Steven Boelter's rimfire book has lots of good info on all three lines, and how they're connected. Plus tons of other great info, worth picking one up.