Okay, I haven't read the posts so someone may have said this already.
Your rifle is not zeroed at 200 if it is dropping 10" at 300.
I would re-zero carefully with a 5 shot group, then again to confirm that the centre of those groups are impacting at zero at 200.
You won't have 10 inches of drop between 200 and 300 yards with factory 257 weatherby. Unless it's special reduced velocity or something, which makes little sense for that particular cartridge as it is marketed for velocity.
Last edited by SakoShooter; 09-26-2019 at 07:40 PM.
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