I just finished powder coating about 200 SAECO #130 .45 ACP boolits. I've had the mold for quite a while but seldom cast with it. Never bothered to weigh either. I'm about to set up to load some .45 ACP rounds for son and grandsons. I have fair supply of PC MP version of H&G 68, 200gr. PC 230 gr round nose and the SAECO #130 supposedly 185 gr. Just to be safe and have these about the same velocity(800-850) I decided to weigh a sample of each.
The 200 gr and the 230 gr weighed in at very close to standard weight. The SAECO #130 weighed 197 gr. That was a lot more than I expected. I checked the scale despite having 2 different bullets come in at close to specified weight. I used my Lyman check weight set that has served me well for many years. It verified the scale was set correctly for each bullet.
I didn't specify the mold for the 230 gr rnd nose bullet because I couldn't remember the number. It was also a SAECO mold. Being fairly new to powder coating, I didn't know what to expect from these PC bullets. Apparently, PC doesn't add much weight. I would have been drastically misled if I had only weighed the #130 bullets.
Has anyone ever encountered this much weight variation from the weight specified for a mold?