I imagine we’re all familiar with these choke percentages from O’Connor’s The Shotgun Book.

30” circle @ 40 yds)
• Full Choke: 70% or higher
• Improved Modified: 65%
• Modified: 55-60%
• Skeet No. 2: 55-60%
• Quarter Choke: 50%
• Improved Cylinder: 45%
• Skeet No. 1: 35-40%
• Cylinder: 35-40

Anyone know if there’s an expanded chart that gives percentages for the chokes at lesser ranges I.e. 35, 30, 25, etc.

If not, taping some of the math minds out there, could those percentages be accurately extrapolated from this 40 yard chart?


Speude Bradeos