I bought this mold from Dean Winchester several months ago. The 182 gr. plain base bullet sizes out well at .311 ". It has always been a very accurate plain base bullet out of my many .30 cal. rifles.
The 182 gr. plain base , 30 cal. was shot today out of a 30-06 Springfield 1903 with a pristine 2 groove barrel.
Load was 8.5 grs. of Herco and the Accurate 182 gr. plain base, bullets were sized .311" . I fired this 5 shot group at 50 yards. ( That aiming square is 1.25 inches X 1.25 inches for size comparison )
Some feel that shooting plain based rifle bullets is a waste of time. I'm NOT one of those who holds that idea ! ! !