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Old 09-01-2012, 08:57   #1
Gpruitt54
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Inconsistant powder drop - Lee Auto Disk

Did my firstreloads last night (30 rounds). Loading 165grain .40 S&W. However, I cannotget a consistent powder drop. I am using Hodgdon HP-38 powder. Like I said,this was my first reloads. HP-38 is the only powder I have. HP-38 is alsoclearly listed in my Lee reloading manual.

I am following the manual it is recommended to use the .43 disk opening. Butthat through way too much power. All the loads with the .43 were near, or overthe recommended max load. So, I changed to the .40 disk opening. But it is droppingjust below the starting powder load.

WTF! I don't want to load powder my hand. And I cannot change to a totallydifferent brand of equipment. I am just starting out.

What can I do to get a consistent powder charge with the above gear???
Should I fire the 30 rounds I already made???

Last edited by Gpruitt54; 09-01-2012 at 09:20..
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Old 09-01-2012, 09:12   #2
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Quote:
Originally Posted by Gpruitt54 View Post
Did my first reloads last night (30 rounds). Loading 165grain .40 S&W. However, I cannot get a consistant powder drop. I am using Hodgdon HP-38 powder. Like I said, this was my first reloads. HP-38 is the only powder I have. HP-38 is also clearly listed in my Lee reloading manual.

I am following the manual it is recomended to use the .43 disk opening. But that through way too much power. All the loads with the .43 were near, or over the recomended max load. So, I changed to the .40 disk opening. But is throughing just below the starting powder load.

WTF! I don't want to load powder my hand. And I cannot change to a totally different brand of equipment. I am just starting out.

What can I do to get a consistant powder charge with the above gear???
Should I fire the 30 rounds I already made???

HELP!

The list of correct discs for powder loads is not usually correct. It usually throws light charges depending on powder type.

Weigh your charges for the volume give if it is too heavy try the next one lower if the charge is too light go higher. You need to let your powder scale tell you which disc is correct for the load you want.
Once you find the right one it usually throws consistent chages for that load.
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Old 09-01-2012, 09:28   #3
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I replaced the discs in mine with the Adjustable Powder Charge Bar and it gives you infinite adjustment. also you may want to wipe the inside of the plastic powder storage chamber down with a laundry dryer anti static fabric sheet to keep the powder from hanging up. you also should weigh your charges to be sure, and safe.
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Old 09-01-2012, 09:30   #4
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You could also try the Lee adjustable powder measure for in beteen charges. http://www.midwayusa.com/product/150...wder-charge-ba

It doesn't work real good with very light loads.
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Old 09-01-2012, 09:49   #5
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.40 throws 4.3 and 43 throws 4.6 is what i see. i would make some at the 4.3 and see how they work in your gun. they may or may not cycle.

One thing i have found, and you take it for what its worth, is that these days data is very conservative. what was max load now. may have been starting load in the past.
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Old 09-01-2012, 10:09   #6
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Quote:
Originally Posted by waawaaweenie View Post
I replaced the discs in mine with the Adjustable Powder Charge Bar and it gives you infinite adjustment. also you may want to wipe the inside of the plastic powder storage chamber down with a laundry dryer anti static fabric sheet to keep the powder from hanging up. you also should weigh your charges to be sure, and safe.
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Cool, the dryer sheet sound like an excellent idea. I just wiped down my equipment with one. Thanks!

Regarding the adjustable powder measure, does it replace the disks? Do you use one?
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Old 09-01-2012, 10:19   #7
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be real careful when using the adjustable charge bar with light loads. You might find it might drop light or nothing if powder clogs it up.

I threw mine in the garbage after i noticed some cases with no powder
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Old 09-01-2012, 10:19   #8
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I primarily use power pistol which thus far has metered well in my Pro Auto Disk. However the hole size Lee recommended was off quite a bit. For the powder charge I needed I had to go 3 hole sizes over what was recommended so it would throw that charge.

You will have to do some experimenting. It is best when setting up the measure charge to run the press as you would when you are actually making ammo. Run at least 10 charges through before you even start measuring the charge to settle everything. Just use primed cases to catch the powder and dump it back in the hopper.

Some powders meter better than others. I have the double disk kit, adjustable charge bar and micro disk kit on hand just in case I need them. But for the most part just use one disc.

Last edited by dkf; 09-01-2012 at 10:21..
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Old 09-01-2012, 10:38   #9
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Quote:
Originally Posted by Wash-ar15 View Post
.40 throws 4.3 and 43 throws 4.6 is what i see. i would make some at the 4.3 and see how they work in your gun. they may or may not cycle.

One thing i have found, and you take it for what its worth, is that these days data is very conservative. what was max load now. may have been starting load in the past.
I was seeing much higher drops with the recommended disk. I weighted each drop. That is when I went to the smaller disk opening (.40). The .40 disk opening dropped below the starting loads.

So, I am getting either too much or too little powder. .40 and .43 are as close as I can get with the disk set that came with the Lee Auto desk powder measure.

Everything I am reading says not to use loads that ball below the starting charge and not to use loads that are above the max charge. So, I donít know what to do at this point. It seems that none of my loads are usable. Right?
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Old 09-01-2012, 10:41   #10
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Quote:
Originally Posted by Wash-ar15 View Post
be real careful when using the adjustable charge bar with light loads. You might find it might drop light or nothing if powder clogs it up.

I threw mine in the garbage after i noticed some cases with no powder
I inspected each case, after each drop, just to be sure I was getting powder. I am sure I have no empty rounds.
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Old 09-01-2012, 11:05   #11
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I just got my Auto Disk and haven't used it. I believe that I have read where you should run a pound of powder through the unit before using it. I'm expecting that the experienced reloaders here can address whether this is true.
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Old 09-01-2012, 11:26   #12
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Not a fan of the adjustable charge bar for light charges. I have had issues with bridging. Here are some threads that could help.

http://www.glocktalk.com/forums/show...&highlight=LCT

http://www.glocktalk.com/forums/show...&highlight=LCT
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Old 09-01-2012, 11:30   #13
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Yeah, the Auto desk is a great tool. As a new loader, I kind of expected that all the gear would work as shown on hundreds of YouTube videos I have watched and the forums like this one. But you never know what what you don't know until you start trying it for yourself. I am starting to look at the Micrometer powder disk that Lee sells. I can only hope that solves my problem.

So far, none of my loads are per load weight as shown in the Lee reloading manuals. They are all light, less than 4.8 grains of Hodgdon HP-38. I am shooting .40 S&W using 165 grain flat noise jacketed rounds.

I know my digital scale is correct. I have tested it with known weights. the scale is consistent. My problem is the loads coming out of the Lee Auto Desk.
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Old 09-01-2012, 11:33   #14
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You could always try opening up the .40 hole on the disk a little with some finer grit sandpaper.
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Old 09-01-2012, 11:39   #15
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Quote:
Originally Posted by Gpruitt54 View Post
So far, none of my loads are per load weight as shown in the Lee reloading manuals. They are all light, less than 4.8 grains of Hodgdon HP-38. I am shooting .40 S&W using 165 grain flat noise jacketed rounds.

I know my digital scale is correct. I have tested it with known weights. the scale is consistent. My problem is the loads coming out of the Lee Auto Desk.
Ignore the suggested disc size. Its never right. Be careful with the adjustable charge bar. You have been warned. Buy a extra kit and open the .4 up or do the mod in the link.
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Old 09-01-2012, 12:23   #16
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Quote:
Originally Posted by Gpruitt54 View Post
Cool, the dryer sheet sound like an excellent idea. I just wiped down my equipment with one. Thanks!

Regarding the adjustable powder measure, does it replace the disks? Do you use one?
Yes the adjustable powder measure replaces the other disks. Depending on powder type and size of load, it can have problems as stated with light loads of bulky powders. Usually above about 4 to 5gr the drop is good.

My .46 disk drops4.8gr. of ww231 similar to hp38 and my .49disk drops 5.2gr of ww231.

What load are you trying to achieve. and what type of press are you using the powder measure on?
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Old 09-01-2012, 13:14   #17
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My book shows 231 and a 165 gr bullet in .40 as a range of 5.2 to 5.8. You should be able to get a stock disc to work with that powder.
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Old 09-01-2012, 13:18   #18
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I use the adjustable powder bar with an auto disk powder measure, but only with ball powders and Iíve never used it below 3.0 gr. of Win 231 and have always gotten good results.

ButÖ..

Set up is important for good results.

I do use the dryer sheet and run several charges through went the powder measure is new.

I reload pistol rounds on a LCT press and start by adjusting the charge bar, without moving from the charging station, until I can throw 5 identical charges in a row, then Iíll run the press through the full cycle, weighting each charge until I get another 5 identical charges of the weight I want to reload, then Iíll check every 10th round to make sure all is well.

I tend to stay at the lower end of the recommended weight, Iíve loaded thousands of rounds this way without any problems, but if Iím reloading at the high end of the recommended weight as in a hunting load, Iíll weight each charge.

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Old 09-01-2012, 16:09   #19
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The difference between the 0.40cc and 0.43cc cavity is 0.3 grains with 231/HP38. How one be too high and the other too low is beyond my comprehension.

The adjustable disc defeats the whole purpose of the Autodisc system. The beauty of it is that it can't come out of adjustment. You can't bump it, vibrate it, whatever to get it to wander because the discs are fixed. By using that adjustable disc, you just add more opportunites for human error to screw you up. Also, at small settings, with flake powders, it is useless.

OP, your description of what is going on leads me to believe that you need to learn a little more about the whole process of reloading before you start looking to your gear as the source of your problems. I'm not trying to flame you, but you talk about a lack of consistency and then describe a situation that has nothing to with consistency.

The Lee disc system is very consistent with ball powder like 231/HP38.
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Old 09-01-2012, 16:26   #20
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Quote:
Originally Posted by ColoCG View Post
Yes the adjustable powder measure replaces the other disks. Depending on powder type and size of load, it can have problems as stated with light loads of bulky powders. Usually above about 4 to 5gr the drop is good.

My .46 disk drops4.8gr. of ww231 similar to hp38 and my .49disk drops 5.2gr of ww231.

What load are you trying to achieve. and what type of press are you using the powder measure on?
I am using a Lee Classic turret press.
I am trying to drop loads for .40S&W 165 grain bullets.
My Lee manual calls for a starting load of not less than 4.8 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.

Last edited by Gpruitt54; 09-01-2012 at 18:27..
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Old 09-01-2012, 16:31   #21
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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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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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