Author Topic: Preferred Bushing/Powder Bar Shape  (Read 4293 times)

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Star73

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Preferred Bushing/Powder Bar Shape
« on: January 31, 2009, 05:42:44 pm »
I am interested in hearing if members have found a tall-thin column of pdr or a short-wide column shaped bushing gives the best results in various powders? Do course grains prefer either? It would seem when using fine grain powders shape wouldn't be too important.

The difference in height possible in a star would be the thick bars using commericaly available bushings, or at the other end, an "O" bar with a larger diameter.

Thanks,
Ron

Scott L

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Re: Preferred Bushing/Powder Bar Shape
« Reply #1 on: July 31, 2009, 10:46:36 pm »
I made a fixed powder bar for a Dillon powder measure to drop 1.5grs of powder for my .32 S&W long. The bar is .200 thick w/.250 hole.
Since doing this I asked the Research Fellow at work what the best hole shape would be and he stated that a narrow, deep hole is best.
He is also an accomplished shooter & reloader.
Scott

varmintpopper

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Re: Preferred Bushing/Powder Bar Shape
« Reply #2 on: August 03, 2009, 01:15:12 am »
I would guess that a tall thin coluum would be the best for the fine grain and ball type powders, but could possibly cause the problem of bridgeing for large grain or stick type powders, just my two cents.

lindy