Just loaded 12 6.5x 57 for my "Worlds Ugliest Rifle (altered and sporterized ) Model Perfect ,Guide Quality 6.5 Jap x257 Roberts". Why 12? 'Cuz I only have 12 cases, thats why! I used the B+M powder measure for the first time too. Took a look at the Hornady Manual, selected my load, checked the B+M manual and set the tube for 41.0 gr 4350. My RCBS scale says the tube was dead on for 3 tries! I guess 1930's tech is good enough for me.
The only thing I found is that you really have to snug that sucker down. It wants to move around on me. Not as fast as my Redding, but it seems just as accurate. Plus, it's kinda neat seeing the powder fill the reservoir.