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Old 09-01-2012, 16:31   #21
WiskyT
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Quote:
Originally Posted by Gpruitt54 View Post
I am using a Lee Classic turret press.
I am trying to drop loads for .40S&W 165 grain pullets.
My Lee manual calls for a starting load of not less than 4.6 and not more than 5.3.
I am using HP-38 powder.

The manual calls for Auto disk .43. However the .43 disk is dropping more than 5.8 for starters. I move to the .40 disk, but the .40 disk is dropping to little powder, less than 4.8 for starters.
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.
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Old 09-01-2012, 17:18   #22
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Read those two links I posted on how to run the LCT. You have to be consistent in what you do. Also 4.8 is just a little above starting for your manual. Look at hodgons website to get a second source. You should get a third manual as well. I think you just don't know how to get started and run the equipment. PM me if you want help.
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Last edited by Colorado4Wheel; 09-01-2012 at 17:18..
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Old 09-01-2012, 18:03   #23
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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.
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Old 09-01-2012, 18:27   #24
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Did you read the links? You need to pull the handle the same each time and pull it 4 times for each powder drop.
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Old 09-01-2012, 18:31   #25
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Gpruitt54,

I use a LEE Classic Turret Press with the Auto Disk Measure as well and no your not crazy. I run into this all the time. Some of the charge amounts I find work best don't always correspond to the amount you will get from the disks. What I do get from the charge amount given is very consistent time and time again.

In your case (for example) if you wish 5.0g of HP-38 powder you have two options - either drop down to #40 disk and weight each round, use your yellow scooper (came with the set of LEE dies) to trickle the exact charge you need. or use the adjustable powder measure.

The system is not really designed for individual charge amounts. You kinda have to take what they give you. It sucks but thats the system that comes with the Auto Disk.

you could try testing your charge amount that correspond to the LEE Auto Disks and see if those amounts give you the feel and accuracy you are looking for. This way if you want to make a large production run you can just set it up and go.

Good luck
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Old 09-01-2012, 18:49   #26
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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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Quote:
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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Originally Posted by Colorado4Wheel View Post
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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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.
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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Originally Posted by Gpruitt54 View Post
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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Quote:
Originally Posted by WiskyT View Post
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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Originally Posted by Wash-ar15 View Post
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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