Hard to Dispense Powder


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Surculus Solitudo
January 30, 2010, 10:02 PM
I have been very pleased with my reloads in .40 cal and 9mm using Titegroup. I am now loading some rounds for my .243 rifle for the first time. I wanted to set up my RCBS powder measure to throw about 35gr and then trickle the rest on my scale. But the two powders I am trying to use (AA4350 and Reloader 15) seem to bind up the measure. It seems to catch as I move the arm up or down.

I did notice that Titegroup is flaky and AA4350 and R15 are cylindrical. Are the cylindrical powders what some are calling "extruded"?

Have I learned that you can't use cylindrical powders in a RCBS powder measure?

Are there powder measures that can handle these powders?

Thanks for allowing me to access your collected wisdom.

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billybob44
January 30, 2010, 10:18 PM
I have been very pleased with my reloads in .40 cal and 9mm using Titegroup. I am now loading some rounds for my .243 rifle for the first time. I wanted to set up my RCBS powder measure to throw about 35gr and then trickle the rest on my scale. But the two powders I am trying to use (AA4350 and Reloader 15) seem to bind up the measure. It seems to catch as I move the arm up or down.

I did notice that Titegroup is flaky and AA4350 and R15 are cylindrical. Are the cylindrical powders what some are calling "extruded"?

Have I learned that you can't use cylindrical powders in a RCBS powder measure?

Are there powder measures that can handle these powders?

Thanks for allowing me to access your collected wisdom.
Yes the extruded powders will feel like you are cutting grains=you are.. Does not seem to matter with my Uniflow(RCBS), since I trickle up to weight anyway. For the better feel, I sometimes use WW-760,Varget, BLC-2. These do the same job as IMR-4064, and "feel" better.

243winxb
January 30, 2010, 11:25 PM
Some times you are cutting stick powder using IMR 4350 & H4350. Both my measures do it. Try different methods. Try a baffle or a funnel as a baffle. If loading near maximum , weigh each charge and trickle.

lgbloader
January 31, 2010, 12:05 AM
Hey S.S.

Extruded powders will feel like that. I have 3 Uniflows and they are all very accurate even with extruded, still I like to be very precise.

RCBS powder measure to throw powder and then trickle the rest on my scale.

I used to use that method for years and then I finally broke down and got a Chargemaster.
Before I got my first Uniflow, I used a dipper for throwing a charge and then trickle the rest of the charge to proper weight with the same dipper. I was even faster with the dipper than with a real trickler. Still use both methods today when I feel like it.

LGB

madd0c
January 31, 2010, 12:38 AM
+1 on the chargemaster

I was initially using IMR-4064 in .223 and .308 but was getting some inconsistent throws with the RCBS powder measure due to cutting the stick powders. I was having to set the thrown charge a little low and then trickle up on every charge to get the weight I wanted. I switched to Rel-15 because I was told this metered much better. Well, it did meter better but how much better is relative i was having less trouble but still was trickling up to my final weight.

When I found the chargemaster on sale I bit the bullet, and I can say that it is so far well worth the money spent. It doesn't care if it is 4064, rel-15 or any of my handgun powders. The only thing I see now is that it will occasionally overthrow the 4064 due to clumping in the dispense tube, but it tells you it is an overthrow on the display and I just dump that one back in the hopper or dip out a grain or two with an old LEE dipper. It only has an overthrow about every 15 or so dispenses which is fine with me.Recently saw something in another thread here about cutting a soda straw and inserting it in the dispense tube to stop the clumping..gonna try this at some point.
madd0c

birdshot8's
January 31, 2010, 08:50 PM
have found moving the lever smartly gives a more precise throw.

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