i have seen mine react to one kernel of big game powder
Scales
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Swampman
Old Fart
Not an expert on the subject, but I'm pretty sure all scales require gravity to function.
LiveLife
Member
Keep in mind that g = gram and gr = grain.
0.05 gram = 50 mg = 0.77 grain
0.77 grain resolution is not suitable for reloading which needs 0.1 grain resolution. (Many pistol powders have 0.5 gr start/max charge range).
Digital scales with higher than 0.1 gr resolution that can consistently verify 0.1 gr check weight and powder charge range being used can certainly take their place.
I wonder how many beam scale users verify their scales with 0.1 gr check weight? (And we have already verified digital scales with 0.08/0.06/0.04 gr check weights)
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Tacoma
Member
I have been using a simple Midway Frankfort Arsenal digital scale for over 10 years now and it is as reliable as a hammer. Best $35 I ever spent in this game.
CoalCrackerAl
Member
I use a Frankfort Arsenal digital scale too. When i have the AC on it drifts some. It used to drift when i had florescent lights. I changed to LED. Much better. If i have the radio cranked up it will drift a little. Im guessing from the bass.
LiveLife
Member
I am on my second FA DS-750 scale (First one was PIF) and as long as batteries are charged (I use rechargeable) and used between 59F - 95F, it will verify 0.1 gr check weight and drift only by 0.1 gr.
It's been a good durable digital scale I don't mind keeping on the bench with big backlit readout for aging eyes. (More sensitive digital scales are stored away from the bench)
Digital is not as fast as a good balance? I find that surprising (and have no data to refute your statement). I hand trickle on a balance that has an oil reservoir to dampen oscillation. I always assumed that an electronic scale would be faster. Perhaps I need to try a different oil viscosity because the oscillation is what lengthens my loading time. I would expect that an oil that is too viscous would create it's own issues (slow/no response).
I've developed a trickling technique that reduces the oscillation time. I place the pan with the charge on the balance and then trickle in a few kernels of powder just after the scale indicator was at it's highest point in the oscillation and is beginning to drop. At that point in time, the pan is begining to move upward and the upward momentum of the pan is counteracted by the downard momentum of the trickled powder and the oscillation is reduced. This is still time consuming.
LiveLife
Member
Not all digital scales have the same circuitry and while some digital scales can readily support additional trickling of powder granules/kernels, some digital scales (irregardless of price) simply won't support trickling of additional powder granules/kernels.
And depending on the brand/model of digital scale, how fast they recalculate addition of powder granules/kernels to show change in weight can vary.
My Gemini-20, WAOAW and analytical/lab digital scales will support trickling of additional granules/kernels and will display change in weight rather instantaneously and faster than I can trickle on Ohaus 10-10/RCBS 5-0-5.
JFrank
Member
Quote; wonder how many beam scale users verify their scales with 0.1 gr check weight? (And we have already verified digital scales with 0.08/0.06/0.04 gr check weights)
I do not, I currently use a pair of 20 grain CW’s that actually come in at 20.02 each. I find that with these weights together being closer to my target charge seem more relevant.
I do not, I currently use a pair of 20 grain CW’s that actually come in at 20.02 each. I find that with these weights together being closer to my target charge seem more relevant.
Yep. If My target charge weight is 74.6, I’ll put 74 or 75 gr from my calibrated weights on and check.
Varminterror
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Scales aren’t the same as balances. Mass isn’t the same as weight.
The difference: a balance will yield the same output regardless of gravitational force - when we have a mechanical equivalent of 50grn on one side of a balance, a 50grn item on the other side will balance, whether we’re on the moon, on Earth, or on Mars. A scale is dependent on some proportionality of response, spring deflection, load cell potential, etc. So a 50grn bullet won’t weigh the same 50grn if the scale is on the moon, or Mars.
Listen to the comments..."I check it with my beam scale"...
We have been brain washed to think electric is better, it has to be...right ?
Gravity is, for the most part a constant, it does not need replacing, unlike batteries...I use a RCBS 505 beam scale...she has never failed me...she just does not have a fancy LCD screen...she makes you read.
We have been brain washed to think electric is better, it has to be...right ?
Gravity is, for the most part a constant, it does not need replacing, unlike batteries...I use a RCBS 505 beam scale...she has never failed me...she just does not have a fancy LCD screen...she makes you read.
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