I've concluded that the perfect amount of rifles to own is whatever you own at the time + 1
RubenX, you are still in the earliest stages of this malady. You will note that you have yet to start listing your +1s for different sub-groups (for example):
in bolt centerfire rifles...
in bolt rimfire rifles...
in semi centerfire rifles...
in detachable magazine bolt rifles...
in synthetic stock bolt centerfire detachable magazine medium contour barrel rifles...
in laminated thumbhole stock centerfire detachable magazine heavy varmint barreled bipod stud from the factory and recessed target crown rifles...
Just thought that in all fairness you should have a glimpse at what road you have begun traveling down...
Oh, and did I mention handguns? Shotguns?
I attempted a stop gap measure years ago. I bought a safe that is on the "medium" size and said that I had to keep my firearms in it. Surprisingly that worked for decades; bought and sold so that at the end of the day I could close the door on my safe. And then I got an incredible deal on another new safe, after all I did have a relatives hunting rifle that was taking up room in my safe, so... now I have two safes!
And I can close both doors at the end of the day; for now...