Hornady 195gr. Interlocks will work well Steve - Norma 203 - I think that is Reloader #15 - will get them up 2,510fps- Pacific lists 47.0gr. max. (Pacific calls there 196gr. to 198gr.)Starting load of 43.5gr. at 2,200fps.

If you could find some of the Speer 225gr. IMR4350, 54.0gr. max load at 2,440fps. 49.0gr. starting load at 2,150fps.
The 4350 load with that 225gr. Speer worked well for a friend of mine on a charging grizzly. The third shot into the chest(under the head) turned it and 4th through both shoulders stopped it.

These are from an old Pacific book - stating due to the greater expansion ratio of the8x57, over the '06, the slightly lower capacity 8x57 will deliver the same speeds with the same weight bullets as the '06.

Another friend of mine has used the 187gr. Rem. in his 8x68s and said it was a pretty good bullet as well.