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Reloading Berger Bullets


Super Slow Burning Powders?

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Unread 12-15-2007, 06:00 AM
Silver Member
Join Date: Jan 2003
Location: Wallaroo, South Australia
Posts: 201
jwp475, Thank you for that information on WC872.

At the moment my maximum load is 69.0 grains/H870 with the 156 grain Wildcat in my 257Weatherby. This represents a load density of around 81%, and I would prefer to use a ball powder that achieves at least 85% and preferably over 90%.

My early trials using Vihtavouri 20N29 have been a flop, with powder bridging seeming to be the cause of my problems. I will try some lighter loads soon, just in case this lot of 20N29 is much faster burning than I expected. Brian.
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