what manuals to use when using remington bullets.

Use any manual. Whether you use the same bullets in the manual or a different bullet of the same weight, it is wise to back off the max by about 5% and work up from there. Each rifle is a bit of an entity unto itself. MM

Welcome to the forum. I use Hornady or Nosler manuals but you can use any of they just pick out your bullet. Then start with starting load an work your way up. I Remington bullets and this is how I start