Anyone using this for 7 rem mag , I plan on loading up some with 140 gr ttsx projectiles. I haven't found any load data so I will contact Barnes. Has anyone had good results with this powder?
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Imr 7977
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Loaded up some rounds last week with 7977 behind Barnes 140gr ttsx. As per Barnes I started at 66.5 and worked up. At 68 gr. The case was full, I am using prvi brass, I wasn't comfortable compressing the powder so I stopped there. 67.5 seemed like a good group so I'm going to run with that. Also primers (winchester lr Magnum) were flattened a bit but no sticky bolt. If anyone else is thinking of trying this combination in the 7 mag hopefully this will help.Comment
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How fast were they?A 30cal will reach out and touch them. A 50cal will kick their butt.
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