As hlee said, what do you mean by repeatable?
Lots of variables there such as, but not limited to; will the suppressor be taken off and on, swapped between different rifles/barrels, different length barrels, etc etc?
If you’re talking about putting a suppressor on your rifle and going to the range to set your zero, leaving the suppressor attached, that poi should stay. That will however depend on what your using to support the front of your rifle and ‘how’ your supporting it.
Much much more info is needed from you.
But based on your question, I’d encourage you to educate yourself by reading, watching videos, Google search. A suppressor is simply an extension of the barrel, and adding (or subtracting) 6-10” from any barrel will absolutely affect poi shift