I lucked out getting this 6 cavity mold. Just now getting around to using it. Wow, the accuracy of the load with IMR 4227 at over 1500 FPS out of my mid 70’s marlin is spectacular. These unsized bullet do budge my cases a wee bit but chamber. I see that lee is offering a overrun of .432 sizers. Should I get one for more consistent bullets? These bullets are dropping out at about .433.
Also I am about to this load in 2 Ruger super blackhawks. I know mine has a .4305 groove diameter. I am guessing good results as well.
Thanks ahead of time.