Chokes & Gauges

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Gauge

Bore

Full

Improved
Modified

Modified

Skeet 2

Improved
Cylinder

Skeet 1

Cylinder Bore

12

.729

.035

.694

.025

.704

.019

.710

.012

.717

.009

.720

.005

.724

.000

.729

16

.667

.028

.639

.020

.647

.015

.652

.010

.657

.007

.660

.004

.663

.000

.667

20

.617

.025

.592

.019

.598

.014

.603

.009

.608

.007

.610

.004

.613

.000

.617

28

.550

.022

.528

.016

.534

.012

.538

.007

.543

.005

.545

.003

.547

.000

.550

67

.410

.017

.393

 

 

.008

.402

   

.004

.406

   

.000

.410


Yards è 

10

15

20

25

30

35

40

45

50

Full 

100%

90%

80%

70%

60%

50%

25"

30"

35"

40"

45"

50"

Modified

100%

90%

80%

70%

60%

50%

25"

30"

35"

40"

45"

50"

Improved Cylinder

100%

90%

80%

70%

60%

50%

25"

30"

35"

40"

45"

50"

Cylinder Bore

100%

90%

80%

70%

60%

50%

25"

30"

35"

40"

45"

50"

Top number is the percent of the pattern in a 30" diameter circle
Bottom number is the total diameter of the pattern
Standard = 70% of the shot in a 30" diameter at 40 yards