Scientific Anglers – Amplitude Smooth Grand Slam Fly Line

$99.95

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Free shipping on all United States orders over $50.

The Amplitude Smooth Grand Slam fly line is for bonefish, tarpon and permit….all in one line. This taper has been in the offering from SA for many years now and has become a favorite of many a saltwater angler.

The Amplitude Smooth series of lines are, simply put, the highest-performance smooth fly lines in the world. With up to five times less drag and eight times the durability of traditional lines, this will change the way you look at fly line performance.

Tarpon. Bonefish. Permit. All in one day. All on one fly line. That’s the idea behind the Amplitude Smooth Grand Slam, a line designed specifically to help you achieve one of angling’s most elusive accomplishments. With a short, powerful head the Grand Slam cuts through wind and turns over crabs, shrimp, and tarpon toads with ease. We’ve got the line. You just need the fish.

* Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
* The perfect line for bonefish, tarpon, and permit on the flats; also great for snook, redfish, and sea trout
* Overweighted by .75 sizes to load rods quickly; use designated line weight for your rod
* Short, powerful head turns over long leaders with heavy flies
* Tropi-Core technology remains stiff and slick in tropical environments
* SA ID
* Welded loops
* SA AMP SMTH GR SLAM WF X F – (X = line weight)

Scientific Anglers Amplitude Smooth Grand Slam fly line available here in WF 8wt- 12wt. Color is Pale Yellow/Sand/Horizon.

SA Amplitude Smooth Grand Slam 8wt WF-F
* 30′ Head Weight: 235 grains
* Total Head Weight: 300 grains
* Head Length: 40 feet
* Total Length: 100 feet

SA Amplitude Smooth Grand Slam 9wt WF-F
* 30′ Head Weight: 270 grains
* Total Head Weight: 335 grains
* Head Length: 40 feet
* Total Length: 100 feet

SA Amplitude Smooth Grand Slam 10wt WF-F
* 30′ Head Weight: 320 grains
* Total Head Weight: 405 grains
* Head Length: 40 feet
* Total Length: 100 feet

SA Amplitude Smooth Grand Slam 11wt WF-F
* 30′ Head Weight: 370 grains
* Total Head Weight: 450 grains
* Head Length: 40 feet
* Total Length: 100 feet

SA Amplitude Smooth Grand Slam 12wt WF-F
* 30′ Head Weight: 435 grains
* Total Head Weight: 515 grains
* Head Length: 40 feet
* Total Length: 100 feet

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Fly line grain-weight specifications

This is the official AFTMA (American Fishing Tackle Manufacturers Association) chart of fly line grain-weight specifications, based on the front 30 feet of a fly line.

Our website lists the grain weights for each line in its description. Compare that weight with the chart to see whether a particular line is true to size or overweighted.

Weight in grains for the first 30 feet of fly line

Line Weight	Low	Target (in grains)	High
1	54	60	66
2	74	80	86
3	94	100	106
4	114	120	126
5	134	140	146
6	152	160	168
7	177	185	193
8	202	210	218
9	230	240	250
10	270	280	290
11	318	330	342
12	368	380	392
13	435	450	465
14	485	500	515
15	535	550	565

Have more questions? Contact us or watch this video we made explaining the concept:

Free shipping on orders over $50 within the continental US (UPS Ground or USPS). Orders under $50 ship for $7.95.
Faster options: 2-Day and Overnight are available at checkout for an additional charge.
Processing: Orders ship the same day or the next day. You’ll receive a tracking number via email once your package leaves the shop.
Oversized items: Some large or heavy items carry a shipping charge. If so, it’s listed on the product page and added automatically at checkout.
Back-orders: No backorders. If we don't have it, you can't buy it!
International: Canada $29.95 (under 4 lbs) or $49.95 (over 4 lbs). All other countries $49.95 (under 4 lbs) or $69.95 (over 4 lbs).
Sales tax: Applies only to orders shipped within Ohio.

Read our full Shipping Policy

If you need to return an item for any reason:

Simply follow the instructions that are provided with each order.
Send us a quick e-mail, [email protected] and / or drop a note in the return package with the following information: Your name, Order Number, Item(s) and a quick note on reason for returning.

These instructions will also be printed on the return/address form. Please note that if it has been longer than 30 days, we will need to contact you to get a credit card number in order to apply for the credit. Please make sure that we get a good phone number in that case.
Drop the item in the Mail / UPS to us and that’s it – We’ll be looking for it!

We will be waiting for the item and will issue an immediate credit to your credit card account or you may leave the money on the store account for future purchases. If we don’t hear otherwise, the refund will go back on the exact card used for the transaction. *Note: If an item was not purchased via the internet, phone or the purchase was made more than 30 days previous, we will need to contact you to secure a means of credit.

Once we process your return, we will make a note on your “Customer Service Notes” and then drop your return/credit receipt in the mail.
Non-defective, returned merchandise must be in re-sellable condition.
Please make non-defective returns within 30 days of purchase – please contact us if more time has passed.