Havent heard yet. I have a Hawkeye African .375 ruger that I just did a Zimbabwe Safari with. It performed flawlessly. I used the Warne QD rings on mine. I am a long time fan of the M77. I like the dependability and rugged reputation they have. They are well built. I have several of them in calibers from .30-06 to .458 lott. I have never had a bit of trouble with any of them. My .30-06 has fired thousands of rounds and killed countless deer. They are relatively inexpensive as well. The .416 ruger will be my next M77.