The 6mm is a pretty good round, I prefer it over the 243. As a reloader, you can take advantage of the narrow margin of improvement the 6mm is capable of producing.
My experience with the 95 gr Partition was entirely satisfactory on whitetails, tho' limited.

Imagine your grave on a windy winter night. You've been dead for 70 years.
It's been 50 since a visitor last paused at your tombstone.....
Now explain why you're in a pissy mood today.