TooTaxed
Member
Here's a note of caution for you!
I had received a bulk purchase of pulled military bullets, and last night I started weighing a sample of 100 to determine weight variances before reloading. I zeroed my Lyman 1200 DPS without the pan, and carefully placed each bullet in turn on the pan rest, immediately getting the bullet weight to the nearest 0.1 grain, placing the weighed bullet in numbered envelopes. I was very careful not to jar the scale and to deposit and pick up the bullets gently.
About halfway through the batch I noticed the scale momentarily flash a negative 0.4 between bullets. I rezeroed the scale, and got a plus 0.4 grain reading on the last bullet I had weighed! Retested a few of the other weighed bullets, and virtually all were off. Dumped them and started over, being even more careful and rezeroing after about 15 bullets each time...and found that I was still off by 0.1 or 0.2 gr before rezeroing.:banghead:
This shook me...I've lost my faith in using the DPS for my normal powder charge dispensing. I'm going back to my trusty mechanical powder measure and old practice of checking every tenth dump on my beam scale until I get this resolved.
Is there something wrong with the way I used the DPS? What to do? I am contacting Lyman about it...
(By the way...the bullets passed with flying colors...167.5-gr avg. plus or minus 0.5 gr.)
I had received a bulk purchase of pulled military bullets, and last night I started weighing a sample of 100 to determine weight variances before reloading. I zeroed my Lyman 1200 DPS without the pan, and carefully placed each bullet in turn on the pan rest, immediately getting the bullet weight to the nearest 0.1 grain, placing the weighed bullet in numbered envelopes. I was very careful not to jar the scale and to deposit and pick up the bullets gently.
About halfway through the batch I noticed the scale momentarily flash a negative 0.4 between bullets. I rezeroed the scale, and got a plus 0.4 grain reading on the last bullet I had weighed! Retested a few of the other weighed bullets, and virtually all were off. Dumped them and started over, being even more careful and rezeroing after about 15 bullets each time...and found that I was still off by 0.1 or 0.2 gr before rezeroing.:banghead:
This shook me...I've lost my faith in using the DPS for my normal powder charge dispensing. I'm going back to my trusty mechanical powder measure and old practice of checking every tenth dump on my beam scale until I get this resolved.
Is there something wrong with the way I used the DPS? What to do? I am contacting Lyman about it...
(By the way...the bullets passed with flying colors...167.5-gr avg. plus or minus 0.5 gr.)