
Scientific Anglers Magnitude Smooth Grand Slam Fly Line
MAGNITUDE SMOOTH GRAND SLAM
THREE-QUARTER HEAVY LINE
Three Targets. One Line. Zero Compromises.
The SA Magnitude Smooth Grand Slam is your go-to fly line when you're chasing permit, bonefish, and tarpon—and you don’t have time to swap spools. Built slightly overweighted to load fast-action saltwater rods quickly, this line is engineered for power, precision, and stealth in the harshest flats environments.
Featuring the latest Magnitude coating, it offers unmatched durability, tropical heat resistance, and reduced friction. The smooth finish means no textured "zing," making it a quieter option with superior line control for delicate presentations when it counts.
🎯 Why We Like It
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One line for bonefish, permit, and tarpon
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Slightly heavy taper = quick shots & turnover for big flies
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Magnitude slick coating built for tropical heat
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Low-stretch core boosts sensitivity and hook-setting power
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Welded loops for fast changes in the field
🛠️ Tech Specs
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Taper: Weight Forward Floating
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Coating: Magnitude (smooth, ultra-slick)
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Core: Tropi-Core (low stretch)
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Use: Saltwater flats, multi-species
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Color: Surf / Sand / Horizon
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Loops: Welded front and rear
🧠 Pro Tip:
This is the ultimate all-in-one flats line. If you're carrying one rod to cover bones, permit, and juvenile tarpon—this is the fly line you want on your reel. Pair with a 9wt or 10wt and go hunt slams.
SPECIFICATIONS
ITEM NUMBER | LINE WEIGHT | HEAD LENGTH | TOTAL LENGTH | HEAD WEIGHT | GRAIN WEIGHT* |
144018 | WF-6-F | 40.0’/12,2m | 100.0’/30,5m | 230gr/14,9g | 180gr/11,7g |
143738 | WF-7-F | 40.0’/12,2m | 100.0’/30,5m | 255gr/16,5g | 205gr/13,3g |
143745 | WF-8-F | 40.0’/12,2m | 100.0’/30,5m | 300gr/19,4g | 235gr/15,2g |
143752 | WF-9-F | 40.0’/12,2m | 100.0’/30,5m | 335gr/21,7g | 270gr/17,5g |
143769 | WF-10-F | 40.0’/12,2m | 100.0’/30,5m | 405gr/26,2g | 320gr/20,7g |
143776 | WF-11-F | 40.0’/12,2m | 100.0’/30,5m | 450gr/29,2g | 370gr/24,0g |
143783 | WF-12-F | 40.0’/12,2m | 100.0’/30,5m | 515gr/33,4g | 435gr/28,2g |
* Grain weight for the first 30′