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Cortland
Lead Core
Line
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| Cortland
Kerplunk Lead Core Line |
| Description |
Item
No. |
Lb Test |
Price
per 100 yd spool |
Secure
Ordering |
KERPLUNK®
PREMIUM LEAD CORE
Tough, abrasion resistant
braided nylon over a lead core insures quick sinking. Specially dyed
colors change every 10 yards for metering of line length and depth.
Color: Multi-Color
Spools: 100 yd.
Also available in two 100 yd connected spools
for a total of 200 yds. Just change your quantity to 2 when you click
'Add to Cart'. |
LIN-132061 |
14 |
$10.95 |
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| LIN-132092 |
18 |
$11.38 |
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| LIN-132122 |
27 |
$11.72 |
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| LIN-132153 |
36 |
$12.16 |
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| LIN-132184 |
45 |
$12.50 |
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| LIN-132214 |
60 |
$13.29 |
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Cortland uses two sizes of lead insert, one size for their 14# test, and a
larger diameter for 18# -- 60#. This means that except for 14#, the weight of
the lead remains the same for all line strengths. The weight of the line (core
and case) is measured in grains (gr) per 10 foot section: 14# - 46 gr, 18# - 110
gr, 27# - 114 gr, 36# - 118 gr, 45# - 124 gr, 60# - 131 gr. The minor
differences in total weight are attributable solely to the weight of the casing
(stronger, thicker, heavier). One (1) ounce equals 437.5 grains. Therefore 10
feet of 36# test line weights approximately 1/4 ounce. For you trivia buffs a
grain is an old English standard said to be the average weight of a
"grain" of wheat taken from the center of the head.
What does all this mean to you, the leadcore line angler? You should select
the minimum strength line you feel comfortable with (generally 18# --
36#), and it won't have any impact on maximum depth. Keep in mind that
stronger line, besides being more expensive, is thicker. Thicker line uses up
reel capacity, thus limiting the total amount of the line you can spool. You
need at least 100 yards of leadcore, 30 to 40 feet of leader and 50 or more
yards of backing.
According to Cortland, extensive testing by charter captains in the Northwest
has lead (no pun intended) to the following rule of thumb. For 18# test and
greater, at trolling speeds of .5 to 1.8 MPH, with a 10' mono leader and a light
weight spoon, the line goes down 1 foot for every 6 let out. Put another way,
the line drops 5 feet per color (Kerplunk changes color every 10 yards). As in
every trolling situation, water resistance increases with length, and eventually
additional line out does not give you additional depth. It's reasonable to
assume a full 100 yards of leadcore line takes you 40 to 45 feet down and 3
colors (30 yards) of "bird-core" (a leadcore line segment, used in
place of a lead weight, for added depth behind a side planner) puts you 15 feet
down. According to Gudebrod, another manufacturer of leadcore line, after 25
feet of depth thermocline effects the sink rate ( the water density increases).
They suggest 3 colors 15 feet down, 5 colors 25 feet, 8 colors 30 feet and 9
colors 35 feet.
Lead Core Line - 4fishin.com
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