Need some thoughts.

I am currently swapping a Stevens 200 .270 into a factory 25-06 barrel. First time doing this type of swap, but do have all the necessary equipment and youtube. My problem is that on the first go, the roll marks do not even come close to where they should be. I was under the impression since it was for a factory to factory barrel swap, they would line up close. As it is, the caliber roll mark ends up directly down.

Anyone have any suggestions? I think my OCD will drive me crazy if the address stays at the bottom

Thanks for any suggestions,

Kansan