Aluminum or steel? rings are 20IP max for steel usually.
Base screws: 30 IP
Windage screws: 30 to 40 IP
Rings, aluminum: 10 to 15 IP
Rings, steel: 15 to 20 IP
Stocks without pillar bedding, wood, fiberglass, synthetic: 40 IP
Stocks with pillar bedding: up to 65 IP