Talley Rings 1" Browning Abolt & Steyr (not for AB3 see below) - for 223 there are 2 options see below for more info

These rings will not fit a Browning Abolt AB3 - the screws holes are 8-40 thread on an AB3, if your serial number ends with '358' then your Browning Abolt is an AB3. 

If you have a 223 please measure your holespacing for both the front mount and back mount (center to center) if it is 

• Front hole spacing: .860 inches (21.89mm)
• Rear hole spacing: .560 inches (14.22mm)

You will need 930738 (low) or 940738 (medium)

Ex-Low #920000 

Front Base =8.89mm

Rear Base =8.89mm

Low #930000 

Front Base =11.43mm

Rear Base =11.43mm

Medium #940000 

Front Base =13.97mm

Rear Base =13.97mm

High #950000

Front Base =16.51mm

Rear Base=16.51mm