I currently shoot and load for 7x57, 7x57R, 7x64, 8x57IS, 9.3x62 and 9.3x74R. I have also owned 6.5x54MS, 7x57R Ackley improved ( not sure that counts?), 8x57IR, and 8x57IRS. I also really like the .222, which I'm going to include here because the USA has given up on it and Europe still appreciates is as the wonderful small game round that it is.
I must like the 7x64 the best, because i have three, a 1950 Brno 21H, a 1968 Mannlicher-Schoenauer, and a modern Sako 85 Bavarian. If you have specific questions about loading the 7x64, ask away.