I've discovered that the grendel is a unique low velocity , medium BC round (very similar to the .303). I'd be surprised if common ballistic reticles are close enough past 300m. Would need a special grendel one.
2650 would be a nuclear load and there's not enough room for that much powder. Or need a 26" barrel. My 16" matches trajectory at 2350 fps in shooter app out to 600m anyway.
Would a mildot or half mil or a custom dial/ tape be quick enough to use ?
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