Leader Specifications Courtesy of the Orvis Company

7 1/2 Foot Leaders

OX 1X 2X 3X 4X
24"-.019" 24"-.019" 24"-.019" 24"-.019" 24"-.019"
16"-.017" 16"-.017" 16"-.017" 16"-.017" 16"-.017"
14"-.015" 14"-.015" 14"-.015" 14"-.015" 14"-.015"
9"-.013" 9"-.013" 9"-.013" 6"-.013" 6"-.013"
9"-.012" 9"-.012" 9"-.012" 6"-.011" 6"-.011"
18"-.011" 18"-.010" 18"-.009" 6"-.009" 6"-.009"
18"-.009" 18"-.007"


9 Foot Leaders

0X 1X 2X 3X 4X 5X*
36"-.021" 36"-.021" 36"-.021" 36"-.021" 36"-.021" 36"-.021"
16"-.019" 16"-.019" 16"-.019" 16"-.019" 16"-.019" 16"-.019"
12"-.017" 12"-.017" 12"-.017" 12"-.017" 12"-.017" 12"-.017"
8"-.015" 8"-.015" 8"-.015" 6"-.015" 6"-.015" 6"-.015"
8"-.013" 8"-.013" 8"-.013" 6"-.013" 6"-.013" 6"-.013"
8"-.012" 8"-.012" 8"-.011" 6"-.011" 6"-.011" 6"-.011"
20"-.011" 20"-.010" 20"-.009" 6"-.009" 6"-.009" 6"-.009"
20"-.008" 20"-.007" 6"- .007"
20"-.006"


12 Foot Leaders

4X 5X 6X 7X*
36"-.021" 36"-.021" 36"-.021" 28"-.021"
24:-.019" 24:-.019" 24:-.019" 18"-.019"
16"-.017" 16"-.017" 16"-.017" 16"-.017"
12"-.015" 12"-.015" 12"-.015" 14"-.015"
7"-.013" 7"-.013" 7"-.013" 12"-.013"
7"-.011" 7"-.011" 7"-.011" 7"-.011"
7"-.009" 7"-.009" 7"-.009" 7"-.009"
7"-.008" 7"-.008" 7"-.007" 7"-.007"
28"-.007" 28"-.007" 28"-.005" 7"-.005"
28"-.004"


*NOTE: The 9'-5X and the 12'-7X are the author's tapers.


4X George Harvey Style Leader Chart

5X George Harvey Style Leader Chart