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Posted: 8/1/2016 4:58:37 PM EDT
[#1]
Quote HistoryQuoted:
If you use a case and zero it out and then weigh it after powder drop, how would that be different then using the pan that came with the scale? If you start with a zeroed sacle, wouldnt either way work? Quote HistoryQuoted:
Quoted:
First, a reasonably good low cost scale is the RCBS Rangemaster 750. Next you set up your powder measure by calibrating your scale with the weights provided first and then zero it. Drop a charge into the case and then dump the powder into the pan that comes with the scale. Dump the powder back into the hopper and check at least 3 times to verify that is the weight that is consistently being dropped and then make adjustments as necessary up or down to desired charge weight. Once you've got this dialed in your ready to move into the production mode. I would recommend in your case to be comfortable check every tenth round for the first hundred to be sure things are still good. You cannot determine charge weights by using cases, there is way too much variation. That is why your so far off. Your lucky you haven't ended up with a squib yet. If you use a case and zero it out and then weigh it after powder drop, how would that be different then using the pan that came with the scale? If you start with a zeroed sacle, wouldnt either way work? Not really. If you were to use the same case for each drop of powder, yes. But it would be a waste of time moving the powder from a case to the zeroed case then back to the case you plan to reload. The pan will be faster and simpler... If you were to use each individual case, the weight variance will cause too much inconsistency - even if you were to use the same brand from the same lot. I suspect the the variation in weight could be more than enough (in grains) to hide the difference in charge weight. Say for example: one case weighs 45 grains, then the next weighs only 30 grains. 15 grain difference. The charge weight calls for a min of 4.5 and a max of 5.7. In this poor example if you were to use the weight of the cases you could easily be over or under the min and max without ever knowing it... |
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Posted: 8/1/2016 7:31:27 PM EDT
[#2]
Quote HistoryQuoted:
Not really. If you were to use the same case for each drop of powder, yes. But it would be a waste of time moving the powder from a case to the zeroed case then back to the case you plan to reload. The pan will be faster and simpler... If you were to use each individual case, the weight variance will cause too much inconsistency - even if you were to use the same brand from the same lot. I suspect the the variation in weight could be more than enough (in grains) to hide the difference in charge weight. Say for example: one case weighs 45 grains, then the next weighs only 30 grains. 15 grain difference. The charge weight calls for a min of 4.5 and a max of 5.7. In this poor example if you were to use the weight of the cases you could easily be over or under the min and max without ever knowing it... Quote HistoryQuoted:
Quoted:
Quoted:
First, a reasonably good low cost scale is the RCBS Rangemaster 750. Next you set up your powder measure by calibrating your scale with the weights provided first and then zero it. Drop a charge into the case and then dump the powder into the pan that comes with the scale. Dump the powder back into the hopper and check at least 3 times to verify that is the weight that is consistently being dropped and then make adjustments as necessary up or down to desired charge weight. Once you've got this dialed in your ready to move into the production mode. I would recommend in your case to be comfortable check every tenth round for the first hundred to be sure things are still good. You cannot determine charge weights by using cases, there is way too much variation. That is why your so far off. Your lucky you haven't ended up with a squib yet. If you use a case and zero it out and then weigh it after powder drop, how would that be different then using the pan that came with the scale? If you start with a zeroed sacle, wouldnt either way work? Not really. If you were to use the same case for each drop of powder, yes. But it would be a waste of time moving the powder from a case to the zeroed case then back to the case you plan to reload. The pan will be faster and simpler... If you were to use each individual case, the weight variance will cause too much inconsistency - even if you were to use the same brand from the same lot. I suspect the the variation in weight could be more than enough (in grains) to hide the difference in charge weight. Say for example: one case weighs 45 grains, then the next weighs only 30 grains. 15 grain difference. The charge weight calls for a min of 4.5 and a max of 5.7. In this poor example if you were to use the weight of the cases you could easily be over or under the min and max without ever knowing it... Glad to hear the issue is solved for the OP. I appreciate the response about just zeroing out a case it just adds more time as you have to zero each case before measuring for powder charge vs. just dumping powder to be measured and dropping another charge while putting the emptied case back into the rotation. |
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Posted: 8/1/2016 8:14:29 PM EDT
[#3]
Glad to hear you solved your problem and a damn good thing your charge weights were lower than actual. Had it been the other way around you might not be here to post about your dilemma.
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Posted: 8/1/2016 9:40:05 PM EDT
[#4]
I'm going to join in also on congratulations for OP finding and fixing his problem.
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