Reaction Tackle 4-Strand Braid
Diameter chart, reel capacity & backing guide

This guide covers Reaction Tackle's original four-strand braid in Moss Green, from 6 to 80 lb. X8, Ice Braid, Never Fade and Braided in USA are separate lines. Check the selected strength for its diameter and available spool lengths.
- Construction
- 4-strand UHMWPE braid
- Listed strengths
- 6-80 lb
- Line type
- Braid main line
The standard four-strand offering
Reaction Tackle's original four-strand braid is a main-line option when you want low stretch and a separately chosen leader. Match strength and diameter to the reel, lure and cover. Its broad size range changes the amount a reel can hold considerably, so plan the working braid first and use backing to occupy any remaining space.
How much Reaction 4-Strand will fit?
Calculated estimates, not measured fills. Stop at the reel manufacturer's fill level even if some line remains.
Reaction Tackle Braid diameter chart
Original standard Moss Green four-strand product code family only; package lengths are joined by exact variant rather than applying a brand-wide length list.
| Strength | Inches | mm | Spools (yd) |
|---|---|---|---|
| 0.003937 | 0.100 | 150, 300, 500, 1000 | |
| 0.004724 | 0.120 | 150, 300, 500, 1000 | |
| 0.005512 | 0.140 | 150, 300, 500, 1000, 1500, 3000 | |
| 0.007087 | 0.180 | 150, 300, 500, 1000, 1500, 3000 | |
| 0.008661 | 0.220 | 150, 300, 500, 1000, 1500, 3000 | |
| 0.009843 | 0.250 | 150, 300, 500, 1000, 1500, 3000 | |
| 0.011024 | 0.280 | 150, 300, 500, 1000, 1500, 3000 | |
| 0.012598 | 0.320 | 150, 300, 500, 1000, 1500, 3000 | |
| 0.014173 | 0.360 | 150, 300, 500, 1000, 1500, 3000 | |
| 0.017717 | 0.450 | 150, 300, 500, 1000, 1500, 3000 | |
| 0.020472 | 0.520 | 150, 300, 500, 1000, 1500, 3000 |
Choosing your Reaction 4-Strand strength
Pick the test for the rod, lure and cover, then check the four-strand diameter. The 6-15 lb options are quite different physical sizes from the 50-80 lb options.
A 150-yard package and a 3,000-yard package of the same test have the same checked diameter. The larger package is supply for longer fills or multiple reels, not stronger line.
Do not copy X8 or Never Fade specifications into this chart. Similar colors and pound labels do not establish the same product construction.
This is a source-based specification and setup guide, not a hands-on review or comparative performance test.
Want a guided recommendation?
Continue in the Setup WizardSame pound test, different diameters
At your selected strength
Loading diameter comparisons...
What changes with another line?
Nearby diameters in the line database
| Line | Strength | Inches | Difference |
|---|---|---|---|
| Loading line database... | |||
Backing, working line & leaders
Confirm the four-strand product
Match the original Moss Green listing. X8, Braided in USA and Never Fade require their own specification checks.
Choose a working package
Use a verified package size that covers casts, runs and retying. Backing can occupy the reel's remaining volume below the working braid.
Keep the arbor secure
Follow the reel maker's braid attachment guidance, wind under even tension and avoid overfilling just to consume the package.
How Much Fits on These Reels?
Estimated full-spool capacity for the Reaction 4-Strand strength selected above, with no backing. These are calculated examples, not physical tests or recommendations for every pairing.
Loading capacity estimates...
Reaction 4-Strand questions, answered
Does this chart cover Reaction X8?
No. It covers the standard Moss Green four-strand listing. X8 and Ice Braid have separate constructions and diameter charts.
Is the 65 lb diameter 0.40 mm?
The current official four-strand list says 0.45 mm at 65 lb. Legacy or other-formulation values are not used here.
Is 150 yards enough?
Only when the chosen working length fits within it with suitable reserve. Use the reel capacity estimate to plan any backing underneath.
Specifications & sources
Checked September 13, 2026 against the official product information linked below. Diameters are official published mm; inches are explicit mm/25.4 conversions. Practical braid packing varies with tension. Offered specifications do not establish current stock; this is not an independent diameter measurement.
Calculations use the catalog's listed inch diameters. Published inch and millimeter values may differ slightly because of rounding.
- Reaction Tackle official product information Original standard Moss Green 4-strand braid, not X8, Never Fade, or Braided in USA variants. Official product body mm list joined to exact strength/yardage variants.