Last night I did some casting for 45 cals . I cast the 454190, from 2 different molds, an old single cavity, and a brand new DC. The SC produced weights at 255 gr. which is what I have come to expect from the this mold with #2 duplicate. The DC dropped them at 250 gr. I guessed this would be understandable to a point, so I measured the length of the SC Boolit and it is .008 longer than the DC's. Ok so easily enough explained.
Then I was checking weight on two others that I was casting at the same time as 454190's. One of them is the 452424 DC which is a new to me mold, but in like new condition. Its advertised weight is 255 gr. but was dropping for me at 247 gr. I could discount that as just a peculiarity of this mold if it weren't for the other mold I was casting with, a DC 452423 and a 452374 in the same mold block. The 423's advertised weight is 238gr. but was dropping at 245. I would have said that the alloy was off except the 374 was dropping at exactly 225gr. right where its supposed to be. So the 452424 is 9gr. light and the 452423 is 7 gr heavy.. and two others the SC 454190 and the 374 are dead nutz. So what gives?
Justin