Would like to try this 6mm Rem

[bigbrother]

The 105AMAX would probably ruin the fox pelts. I would think at the velocity you will be able to get out of the 6 that expansion to 600 yards would be impressive! The SMK's might not expand very well at all. I shot them out of my .243 for years and groundhogs would typically run into their holes before passing to the other world. I would probably shoot the SST as it's a little harder than the AMAX but gives positive expansion at slowed velocities. Either one should give you great accuracy and to 600yds I don't think you would notice a big difference in trajectory.