I tried Remington's 8mm Mauser factory load which uses 170gr .321 bullets but this was not accurate in my 8x57 I rifle (a rebarreled Mannlicher Schoenauer M1910). Then I found and bought a batch of RWS 196gr .318 bullets and had them handloaded by a local gunsmith. The accuracy in my rifle is excellent.

With kind regards,
Jani