Originally Posted by John55
I’ve heard the Williams unit weighs 3-4oz but have never used it so don’t take my word on that!

About double that.
6.75 oz LA Williams Ob.

Originally Posted by 264magnum

Thanks for all the help! Anyone know the difference between a Williams BM and a Blackburn off the top of their head? I’m doing some parts weighing today and have a Williams but not the Blackburn on hand. Thanks for the pic Rick!

7.10 oz LA Blackburn, so less than half an ounce more than a Williams.