I know it's a pistol mold but I've been shooting it in the 7.62x 39 and 7.62c54 Russian. With my range scrap alloy it comes out about 312 to 313 diameter. I just roll them in Lee liquid alox slightly thinned with mineral spirits and load them up.
These two groups are with a bone stock 1943 91-30 Nagant with iron sights at a 50 yards. The load was 6 grains of unique and a Winchester large pistol primer.
With the sight setting at 5 it was dead on at 50 yards and when I put it at 7 it was dead on at a hundred. I was too lazy to get the coronagraph out but I'm guessing right around 1200 feet per second.
Attachment 233733
Attachment 233732
The lower five shot group has four in one hole!!