Fly Line Weight Conversion

AFTMA fly line weights - conversion to "old style" letter designations (best estimate)

AFTMA No. Avg Weight in Grains (a) Range: Mfg Tolerances Double Taper (DT) Weight Forward (WF) Level (L)
2 80 74-86 IHI IHJ H
3 100 94-106 IGI IGJ G
4 120 114-126 HFH HFG F
5 140 134-146 HEH HEG E
6 160 152-168 HDH HDG D
7 185 177-193 HCH HCF C
8 210 202-218 GBG GBF B
9 240 230-250 GAG GAF A
10 280 270-290 G2AG G2AF 2A
11 330 318-342 G3AG G3AF 3A
12 380 368-392 G4AG G4AF 4A
13 430 418-442 - - -

(a) Per 3M Worldwide / Scientific Anglers(tm), based on first 30 feet of line, exclusive of front level tip. (1 oz. = 437.5 grains)

Last Updated on 8/30/2002 by Tim J. for rec.outdoors.fishing.fly
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