I think the problem with most electronic scales is that the software is designed for grams. Of course, the weight indicated is a rounding to the nearest smallest unit that it registers. So actual may be plus or minus 1/2 the unit. The software conversion from grams to grains is the next problem as the conversion is close to 1 to 1.5 which means the grains gets rounded also introducing another "error". When using a beam balance graduated in grains it is easy to see on the needle scale a little plus and minus or parts of a 1/10 of a grain. I use an sensitive electronic scale but leave it set on grams. Mainly I'm just looking for bullets that look good but whose weight varies possibly due to almost imperceptible fillout of the bands as the mold comes to final stable temp. Of course, something serious like invisible internal voids really jumps out and thos go back in the pot. The few that are just slightly light get marked as foulers. I prewarm the mold on a hot plate and ladle cast with the ladle remaining in contact with the mold for a count of 3 to 5 depending on the weight of the bullet. I alternate 2 molds in succession so the first has plenty of time to  freeze the sprue and avoid any tearing of the base. Good luck. I guess I should add that it is important to maintain a rhythm while casting and that I use a gas pot so the temperature of the lead is constant (no on and off of an electric pot.)

Greg:

Appreciate hearing someone was successful applying procedures based on my experiences.


Dave