Maxed out scope, shooting low

[u/Any-Rip-9727]

Installed 16 inch shaw bull barrel, went to shoot it this weekend and at 25 meters it shoots about an inch low from where I am aiming with the scope maxed out. I am assuming this is barrel droop and I am wondering what is the best solution?

Option 1: The magpul stock came with a barrel shim, I can use that to prop it up, might affect accuracy since it will no longer be “free floated”

Option 2: 20 moa pic rail to point the scope downward

Option 3: I also read about a upgraded v block but not sure if I need to file the barrel

Edit: I think the reason for it shooting low is the v block is over torqued and pulling the barrel downward, I will retorque and see if that fixes the issue