A question concerning mold block length

[Kevin Stenberg]

I am going to be ordering a couple of molds from Tom at Accurate Molds. But I am unsure of which mold block size would be best. Tom makes 2 cavity aluminum molds in either 1.8" or 2.35" lengths. The bullets for my needs are all 30 cal. with a weight of 150 to 190 grains.
I usually use either WW+1%sn or 50%WW/50% soft + 1%sn

 

[Ian]

Select the short blocks.

 

[9.3X62AL]

What Ian said. My Accurate moulds are all in 44 or 45 caliber, in aluminum, and 2-cavity. They hold heat well enough with steady casting rate and metal at 675*-700*.