300 Blackout

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  • Last Post 08 April 2020
thunderstick posted this 08 April 2020

Hello,

Does anyone have any information on load data for a 125gr cast bullet for a 300 Blackout, barrel is 16 inch 1-7 twist.  These will be powder coated with a gas check applied.  I have searched and to no avail, my Lyman cast book doesn't have any information.  Any info would be greatly appreciated.

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Head_Shot posted this 08 April 2020

Get the on-line load data from Sierra Bullets.  Google "Sierra 300 BO load data".  Start with the j-word starting load for your bullet weight and work up.  Be safe.

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