In a medium or long action the 7x57 hands down. Panache, history and just a good round. It will also beat the 7-08 by around 100 fps at modern pressures.
The PT&G target reamer sounds like a good way to go but even the military chambers will usually shoot well with 175 grain RN bullets.
I think the 7x57 would be a lot more popular if so many people had not gotten shot at with them starting with the Spanish American war, Roosevelt and the rough riders, on through WWII. This is almost like a reverse testament to the effectiveness of the round.
If I were building a high end rifle the 7x57 would be on the short list. The 7-08 to me there was never a reason for it's existence, sorry fans and yes I know about it's silhouette origins and that it may have more of the elusive inherent accuracy than the x57 but not enough to matter. Yes it fits a short action better but not by much.
