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Best powder for 3" barrel S&W 686 .357
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07-17-2017, 07:56 PM
BigBill
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In all my leadcast magnums I use UNIQUE powder. 38 special, 44 special gets higher velocities over the longer magnum cases same charge.
In all my jacketed magnums I use 2400 powder.
Keep it simple two powders two different types of bullets.
BigBill
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