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I know this is A REALLY OLD THREAD!!! The catch is that I'm at work with a lot of down time so I'm necroposting again. My goto load ( when I can find the powder) for 77/75 class bullets is 25.2 grains of AA2520. My 20" RRA Predator pursuit will put 10 shots into group smaller than a quarter at 100 yards. I don't have a chronograph but according to the JBM website my estimated MV is 2750. I can get to 600 yards in one turn for paper punching, and at 300 and less it thumps coyotes like a hammer.

[QUOTE="rdsii64, post: 2502063, member: 22867"] I know this is A REALLY OLD THREAD!!! The catch is that I'm at work with a lot of down time so I'm necroposting again. My goto load ( when I can find the powder) for 77/75 class bullets is 25.2 grains of AA2520. My 20" RRA Predator pursuit will put 10 shots into group smaller than a quarter at 100 yards. I don't have a chronograph but according to the JBM website my estimated MV is 2750. I can get to 600 yards in one turn for paper punching, and at 300 and less it thumps coyotes like a hammer. [/QUOTE]

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