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Old 09-01-2012, 18:49   #26
waawaaweenie
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Ihave also heard of adjusting the holes in the discs

like making a smaller one a tad bit bigger or using hot glue or something like that to reduce the size of a larger one down to get things just right

I use the adjustable charge bar with Power Pistol for 9, 40 and 45acp with good results on a classic cast turret but not auto indexing
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Old 09-01-2012, 18:56   #27
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Sanding a smaller hole larger is a good idea. Hot glue could fall off at some point leading to overcharged cases. Or you could read the link I posted and see a easy way to get an adjustable hole.
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Old 09-01-2012, 18:59   #28
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Originally Posted by Colorado4Wheel View Post
Sanding a smaller hole larger is a good idea. Hot glue could fall off at some point leading to overcharged cases. Or you could read the link I posted and see a easy way to get an adjustable hole.
He doesn't need to sand his discs. He's getting 5.8 grains in a cavity that can't possibly hold more than 4.5. Either his scale is ****ed, his powder is dripping wet, or he's wrong about the cavity he is using.
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Old 09-01-2012, 19:08   #29
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Originally Posted by WiskyT View Post
He doesn't need to sand his discs. He's getting 5.8 grains in a cavity that can't possibly hold more than 4.5. Either his scale is ****ed, his powder is dripping wet, or he's wrong about the cavity he is using.
How do you know what he is getting? Sanding the disc is to get a in between setting. If he wants it.
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Old 09-01-2012, 19:32   #30
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How do you know what he is getting? Sanding the disc is to get a in between setting. If he wants it.
I read. He posted 5.8 grains with the 0.43cc cavity. That can't be, even if he was packing the cavity with a dowel and a hand sledge.
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Old 09-01-2012, 19:58   #31
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What WiskyT said...

The VMD of HP-39 is 0.0926 cc/gr. So, for a 0.43 cc cavity we get: 0.43cc / 0.0926 cc/gr => 4.64 gr

As a cross check with the Lee dipper table, a 0.5 cc dipper throws 5.4 gr. Matches my calculator and the table.

VMD value from "Modern Reloading Second Edition" by Richard Lee.

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Old 09-01-2012, 20:02   #32
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I have never found those table to be accurate. I have found I sometimes have to go up two cavity sizes to match what the drop should be.
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Old 09-01-2012, 20:23   #33
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Originally Posted by Colorado4Wheel View Post
I have never found those table to be accurate. I have found I sometimes have to go up two cavity sizes to match what the drop should be.
Exactly, and the OP has his cavity grossly over charging, the exact opposite of every user of this measure.

Like F106 posted, 0.43cc theoretically throws 4.6 grains. IME, that cavity throws 4.3 grains. HTF is the OP getting 5.8 grains?
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Old 09-01-2012, 20:26   #34
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I have never found those table to be accurate. I have found I sometimes have to go up two cavity sizes to match what the drop should be.
I have found the table to be accurate with certain powders.

WST/WSF/700x/BE throw as listed for me.

I would suggest you might get a beam scale to verify your digital scale is correct.
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Old 09-01-2012, 20:30   #35
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I am sure it is something I am doing wrong. Maybe my scale is drifting,though I've scaled the test weight several times, and all seems well. I willrun several powder drops and record exactly what is passing through the twodisk openings I am working with.

I'll post my exact numbers on this thread.
One thing I have found is when I am testing my first ten powder drops to make sure I have the right disk and it's consistant is you have to cycle the handle so the turret will rotate back around to the powder die. The vibration of the turret rotating helps the powder settle in the disk. If you keep running a case in and out and weighing the powder the drops will be more inconsistant.
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Old 09-01-2012, 20:38   #36
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Originally Posted by Wash-ar15 View Post
I have found the table to be accurate with certain powders.

WST/WSF/700x/BE throw as listed for me.

I would suggest you might get a beam scale to verify your digital scale is correct.
I have a Dillon Beam and check weights. I know it's accurate.
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Old 09-01-2012, 20:51   #37
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Something is very wrong. I found that the Lee disc volume was almost one to one with the weight in grains. 0.43cc threw 4.3 grains. I don't know what you could be doing to get 5.8 grains of HP-38 to fall from the 0.43cc cavity. Even if you were compressing it in there it shouldn't be anywhere near that heavy.
OK, I just spent some time taking measurements of a series of drops. All powder drops were performed using the same case. For each drop, the press was cycled in the same way. Here is what I recorded.

.49 auto desk. HP-38 Powder. Following are 20 separate drops using .49 auto desk and the weight of the powder drop. Before each powder drop, the scale was zeroed out with the case on the scale:
1)5.0, 2)5.6, 3)5.6, 4)5.6, 5)5.6, 6)5.8, 7)5.8, 8)5.8, 9)5.8, 10)5.8, 11)5.2, 12)5.2, 13)5.0, 14)5.0, 15)5.0, 16)5.0, 17)5.8, 18)5.6, 19)5.8, 20)5.8

.46 auto desk. HP-38 Powder. Following are 20 separate drops using .46 auto desk and the weight of the powder drop. Before each powder drop, the scale was zeroed out with the case on the scale:
1)5.0, 2)5.0, 3)5.2, 4)5.2, 5)5.0, 6)4.8, 7)4.8, 8)5.0, 9)5.0, 10)5.2, 11)5.2, 12)5.0, 13)5.0, 14)5.0, 15)5.0, 16)5.0, 17)5.0, 18)5.0, 19)5.2, 20)5.4

Are these normal readings? Anybody?

Last edited by Gpruitt54; 09-01-2012 at 21:36..
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Old 09-01-2012, 20:51   #38
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I have a Dillon Beam and check weights. I know it's accurate.
I aplogize. The reply was directed for the OP
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Old 09-01-2012, 20:53   #39
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I would suggest you might get a beam scale to verify your digital scale is correct.
Without check weights how would you know the beam scale is correct? You just need check weights not another scale.
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Old 09-01-2012, 20:54   #40
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Originally Posted by Gpruitt54 View Post
OK, I just spent some time taking measurements of a series of drops. Here is what I recorded.

.49 auto desk. HP-38 Powder. Following are 20 separate drops using .49 auto desk and the weight of the powder drop. Before each powder drop, the scale was zeroed out with the case on the scale:
1)5.0, 2)5.6, 3)5.6, 4)5.6, 5)5.6, 6)5.8, 7)5.8, 8)5.8, 9)5.8, 10)5.8, 11)5.2, 12)5.2, 13)5.0, 14)5.0, 15)5.0, 16)5.0, 17)5.8, 18)5.6, 19)5.8, 20)5.8

.46 auto desk. HP-38 Powder. Following are 20 separate drops using .46 auto desk and the weight of the powder drop. Before each powder drop, the scale was zeroed out with the case on the scale:
1)5.0, 2)5.0, 3)5.2, 4)5.2, 5)5.0, 6)4.8, 7)4.8, 8)5.0, 9)5.0, 10)5.2, 11)5.2, 12)5.0, 13)5.0, 14)5.0, 15)5.0, 16)5.0, 17)5.0, 18)5.0, 19)5.2, 20)5.4

Is your HVAC running?
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Old 09-01-2012, 20:58   #41
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Originally Posted by Gpruitt54 View Post
OK, I just spent some time taking measurements of a series of drops. Here is what I recorded.

.49 auto desk. HP-38 Powder. Following are 20 separate drops using .49 auto desk and the weight of the powder drop. Before each powder drop, the scale was zeroed out with the case on the scale:
1)5.0, 2)5.6, 3)5.6, 4)5.6, 5)5.6, 6)5.8, 7)5.8, 8)5.8, 9)5.8, 10)5.8, 11)5.2, 12)5.2, 13)5.0, 14)5.0, 15)5.0, 16)5.0, 17)5.8, 18)5.6, 19)5.8, 20)5.8

.46 auto desk. HP-38 Powder. Following are 20 separate drops using .46 auto desk and the weight of the powder drop. Before each powder drop, the scale was zeroed out with the case on the scale:
1)5.0, 2)5.0, 3)5.2, 4)5.2, 5)5.0, 6)4.8, 7)4.8, 8)5.0, 9)5.0, 10)5.2, 11)5.2, 12)5.0, 13)5.0, 14)5.0, 15)5.0, 16)5.0, 17)5.0, 18)5.0, 19)5.2, 20)5.4
Are you using the same case or a different case each time?
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Old 09-01-2012, 21:05   #42
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Are you using the same case or a different case each time?
I am using the same case for all measurements and for both disks. I am cycling the press the same way for each drop.
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Old 09-01-2012, 21:07   #43
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Is your HVAC running?
Yes. I reload in my cool and perfectly dry basement.
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Old 09-01-2012, 21:13   #44
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In my limited experiences with the Lee disc system, usually the powder drop is lower than the minimum load. I just go up one disc at a time until I measure what I want. However, I did recently reload 9mm Makarov rounds using a disc with a larger cavity than the recommended disc (I did not have the recommended disk). The charge measured below the Max so I went with it. Range results proved a Super-Hot and accurate round. These loads were so hot that all of the cases were charred and there were a couple of unintended double taps due to recoil. It was fun shooting these rounds but I was a little more than concerned about over pressure. I was shooting a CZ-82.
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Old 09-01-2012, 21:36   #45
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I am using the same case for all measurements and for both disks. I am cycling the press the same way for each drop.
4 pulls of the handle for each drop?
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Old 09-01-2012, 22:02   #46
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Yes. I reload in my cool and perfectly dry basement.
I think the comment was made because if you have any kind of breeze or you make any motion in front of the scale, it will add 0.2 gr or more if the scale lacks a wind screen.

What kind of scale are you using?

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Old 09-01-2012, 22:05   #47
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4 pulls of the handle for each drop?
??? I am testing and attempting to get a consistent weight of powder. I am using a Lee Classic turret press. For each drop, I position the powder die under the case and raise the ram and actuate the powder action to drop the charge.

So, that's one pull for each powder drop. You can see just how inconsistent my powder drops are. They seem (at least to me) all over the place.
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Old 09-02-2012, 02:40   #48
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do you have your scale sitting on the bench you have your press mounted to? the vibration caused when operating your press may have an effect on your scale.

any air movement around your bench? fan running near by? AC vent blowing in the direction of your bench?

with a beam scale I could see the beam move when I had it sitting on my bench when I was operation the press or when the fan for the heat/AC kicked on.

I mountied my scale on a small shelf at eye level above my bench and had to tape of the vent under my bench to prevent movement.

I don't think you'd be able to see movement on a digital scale the way you can see it on a beam scale but try leaving your check weight on the scale when you cycle your press to see if your scale drifts.

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Old 09-02-2012, 02:53   #49
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??? I am testing and attempting to get a consistent weight of powder. I am using a Lee Classic turret press. For each drop, I position the powder die under the case and raise the ram and actuate the powder action to drop the charge.

So, that's one pull for each powder drop. You can see just how inconsistent my powder drops are. They seem (at least to me) all over the place.
Try running the press through a full cycle (raise/lower the ram and index to the next station, all the way around) with a different case for each powder drop and then check the weight of the powder only.

Running the press through the full cycle tends to even things out and seeing as the powder measure is actuated by the case as it drops the powder charge and flares the case for the bullet seating operation, using the same flared case over and over again may be causing some inconsistency in the powder drop.

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Last edited by sig357fan; 09-02-2012 at 03:12..
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Old 09-02-2012, 03:10   #50
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Gpruitt54,

about the only other thing I can think of is if there is an issue with your powder.

how old is the powder?

was the bottle sealed when you first opened it?

have you kept it closed in a cool dry area?

pour some out on a piece of paper, is it clumped together?

what does it smell like?

take a pinch between your thumb and finger and roll it around, does it say in grain form or does it crumble?

thats about all I got.

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