I find it rather amusing that so many people assume a long throat is somehow going to induce poor accuracy.
A good many rifles shoot itty bitty groups with jumps of more than .250" and even more.
It's laughable that so many measure the throat, find it long and throw their arms in the air, howl at the moon, but fail to SHOOT the rifle or experiment.
I built my 375 Weatherby, 340 Weatherby and 300 Weatherby with the original .500" of freebore, all 3 shoot ragged hole groups with TUNED ammo.
Take the time to experiment at MAGAZINE LENGTH, then complain if it DOESN'T WORK.
There is no MAGICAL ONE DISTANCE FROM THE RIFLING that works in EVERY gun, or with EVERY BULLET.
Cheers.