You have to look at more more than one manual and realize that some loads are going to be mild because of older rifles out there, such as the 1888 Commission 8x57, the 1893 and 1895 Mausers in 7x57 and 6.5x55mm. Then there will be loads for these in modern rifles. These powder manuals will only have loads using their powders, and will generally choose one bullet of a weight in each chambering.
Bullet manufacturers often have three or four bullets in the same weight, so their loads are safe ones for the hardest bullets, which generate higher pressures. Bullet loading manuals are good for seeing a lot of different powders.
A bullet manufacturer with just one design, like Barnes, is going to be less conservative.
Lyman and Lee both have new manuals out, and they sell neither powder nor bullets, to they have a mix of brands and loads.
If you have a common caliber, just start with the proven, Old Faithful loads which seem to work well in most rifles, and check your COAL.