This is 300 that I cast getting ready for a family shoot at Christmas. I will need to get more cast and then all reloaded by Christmas.
I have a 4 cavity and measured 4 from one cast to compare cavities.
.455 x .455 226.8gr
.455 x .455 226.5gr
.454 x .455 226.1gr
.454 x .455 226.0gr
I didn't keep track of which came out of which cavity, but with these measurements it doesn't make any difference. I will be sizing them all to .452. I had to look at the two smaller boolits with magnification to find the seam.