Raise the rear peep sight, order a lower fromt sight or a combination thereof.

the easiest way for me to remember is to hold out the index finders of both hands, one with arm stretched and one near you. now raise the finger(sight) nearest you. What would you have to do to bring the front finger (sight) back into allignment. You would have to raise it. So raising the rear sight raises the point of impact.

Or the opposite: lower the front finger (sight) and what do you have to do with the rear sight to come back into allignment. You would have to lower it. Again, this would raise the point of impact.

If you are hitting 7 inches low at 25 yards, I doubt if you have that much adjustment in the peep to compensate. You will most likely have to order a lower front sight to make it work. In the past, you could call T/C and tell them that you need a lower front sight and they would send you one free. Not sure if they are still doing that or not.