Welcome to HuntChat, Steve.
That's good advice. Seat those bullets the the published maximum OAL. But also make sure that you check them in your rifle's magazine (if you plan to load more then one at a time) and through the action. It's possible that maximum OAL rounds might not fit the magazine OR be able to eject a loaded round after it's been chambered.
You also need to be sure that the parallel sides of the bullet are in the case neck. Or, that the curved part at the front of those VERY long bullets does not leave a gap between the bullet and the case when seated. That's a major problem with VLDs: they have to be seated so far out of the case that they exceed published OAL. Then they have to be single-loaded and have to be fired once chambered unless you remove the bolt to unload!
You're shooting very long range targets, right? These aren't big game or hunting bullets at all.
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