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The Green Lightning Heavy Field Short Magnum has earned its reputation over decades of real-world hunting. This is one of the most trusted 20 gauge slug loads on the market, and for good reason. Brenneke engineered this round with a weight-forward design that delivers energy approaching that of many centerfire cartridges while maintaining a remarkably flat trajectory for a 2.75-inch load.
You get a 1 ounce lead slug fired at 1392 fps, producing 1886 foot-pounds of energy. The slug features a distinctive lead point with directional ribs designed for smooth passage through chokes, and a patented rear that expands upon impact. The whole package gets a protective green coating that reduces barrel fouling so your barrel stays cleaner between shots. This design has been refined since 1896 and it shows.
One of the Green Lightning's biggest strengths is that it shoots well out of both rifled and smoothbore barrels. If you have a smoothbore with an improved cylinder choke or tighter, this slug performs reliably. In rifled barrels, you'll see its true accuracy potential. Independent testing showed impressive penetration that exceeded competitive slugs from major manufacturers by 25 to 67 percent, with five-shot groups at 100 yards averaging around 2.95 inches.
Deer hunters depend on the Green Lightning for close to moderate range hunting. The weight and construction provide the knockdown power you need while keeping recoil manageable in a 20 gauge. This slug is purpose-built for areas where shotguns are required, and it delivers when it matters. You're getting five rounds per box, which is standard for this type of ammunition.
Yes. The Green Lightning is designed to perform in both rifled and smoothbore barrels. For best results in a smoothbore, use an improved cylinder choke or tighter. Expect reliable performance and good penetration at typical hunting distances. Rifled barrels will deliver superior accuracy.
The distinctive green coating serves a practical purpose: it reduces barrel fouling and protects against corrosion. This keeps your barrel cleaner between shooting sessions, which is especially helpful if you're running multiple slugs at the range or during hunting season.
Rifled slugs like the Green Lightning are the right choice for smoothbore barrels, while sabots perform better in rifled barrels. The Green Lightning's weight-forward design and proven penetration make it an excellent choice for traditional slug hunting. It generates serious energy and has a track record that speaks for itself.
The Green Lightning shoots remarkably flat for a 2.75-inch load and delivers impressive penetration. At 100 yards from a rifled barrel with proper optics, you can expect excellent performance. Smoothbore shooters should be realistic about their effective range and practice at the distance they'll hunt.
| Caliber/Gauge | 20 Gauge |
|---|---|
| Cost per Round | 2.80 |
| Length | 2.75" |
| Manufacturer | |
| Manufacturer Part Number | SL202HFSGL |
| Product Type | Slug |
| Shot Size | SLUG |
| Units per Box | 5 |
| UPC | 4030128200170 |
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