77 GR Barnes Match Burners as good as 77 SMK?

Match burners are just that burners don’t expect them to be tack drivers. IMO save some expense and time shoot the Smk don’t look back.

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.