when dry firing my rem 700

[mihasic]

I notice that the point of aim jumps to the right about 1MOA, and it is not very repetitive. I don't think it's about pulling the trigger, as it remains the same with different pulling methods applied. So, my questions:
- is it normal?
- what is it caused by?
- is it worth trying to eliminate it?
Thank you.

 

[blargon]

I get better results with ammo.