Another BS claim is that x39 is a "twin" of the .30-30. Yes, in the big picture, it's easy to say they are similar when making a conversational point. In reality, the overall length means you can get the AR chambered in x39, but not .30-30, aside from the rim issues. That's because the case capacity allows max loads 5gr higher, which is far beyond the x39.
ZEROED to the same distance, ALL projectiles will hit the bullseye. The MOA dispersion will affect it, but given the same accuracy, one group will superimpose the other. What long range precision shooters do know is that the increased height of the more rainbow trajectory means taking that into account. Signs, tree limbs, outcrops, whatever that intervene at the top of the flight path come into play. Hitting an elevated highway sign dead center halfway to the target happens. Snipers have to project the holdover for clearance all the way to the target.
It's the whole point of minimizing bullet weight - we try to get the flattest trajectory with enough foot pounds of force out to the limit of the estimated engagement ranges for that kind of shooting. And if it's less than 500m, you can optimize for the bigger bullet, to a point, and accept a bit more drop. It's very much tradeoffs and balances.
ps, I underlined that for a reason, and those that take exception aren't wrong. Your explanation of why should move this conversation in the right direction.
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