Dudz,

I'm not familiar with the Vectan powder you're using. But in general it's normal for some powders to fill the case up to the shoulder/neck junction. For example, I reload 308 Win with Hodgdon powders like Varget and H4895. Most of my loads have very little or no empty space inside the case once the bullet is seated. In some of my loads, when I'm loading the rounds, I can feel the bullets slightly compressing the powder.

Sounds like you are using a good reloading manual, selected a powder that is adequate for the cartridge, and started with the suggested starting loads. You are doing everything correctly. What you're seeing is normal. Actually if there is very little empty space inside the case after the bullet is seated, that is a good thing. If there's a lot of empty space, the powder is free to move around, and there could be differences from shot to shot depending on the position of the powder, which may be detrimental to accuracy.