77 GR Barnes Match Burners as good as 77 SMK?

I can't speak to the 77gr MBs compared to 77gr SMKs, but I have found 6mm 105gr MBs to be as accurate as my Berger 105gr Hybrid Target bullets in my 6BR. The MBs have a slightly lower BC, so .3 more "up" required at 1000 yards with same muzzle velocity.

A buddy of mine bought several thousand 105gr MBs, decided he didn't like them as well as his Bergers, and sold them to me cheap.

Caveat:
Of course, the Berger HT is an accuracy standard setter, so my saying the MB is as good comes with a great big caveat: the MB is as good as the HT with this lot of bullets in my barrel with my brass, powder and primer. Other people's results may vary.