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The Copper Impact 20 gauge sabot slug delivers serious terminal performance for modern slug hunters. Winchester engineered this load around a solid copper expanding projectile paired with a stabilizing sabot design that separates upon impact. The 3/4 ounce slug reaches 1600 fps, giving you the velocity needed for extended-range accuracy without the heavier felt recoil of larger gauges.
Unlike jacketed lead-core slugs that can fragment inconsistently, the all-copper construction expands reliably on contact and retains 80 percent or more of its original weight. This means deeper penetration and better performance on game than slugs that shed weight during expansion. The large impact diameter creates a wound cavity that transfers energy quickly where it counts.
The thin-wall sabot separates from the projectile immediately after leaving the muzzle, but stays with the slug long enough to benefit from your rifle-barrel rifling. This spinning motion gives you consistent grouping at distance that you can't get from rifled foster slugs, which actually don't spin effectively despite the name. If you're shooting beyond 100 yards, sabot slugs outperform traditional slugs by a significant margin. The stabilizing wad forms a dome-shaped tip that aids in flight consistency.
Loaded in standard 2.75-inch hulls for compatibility with virtually every 20 gauge slug gun, these rounds work great from H.R. Slug Guns, Savage rifles, Remington 870 slugster barrels, and other modern setups. Field reports show reliable performance and tight grouping from rifled-barrel platforms. Five rounds per box keeps your count accessible for range testing and field use.
These rounds perform optimally in rifled barrels, which impart the spin needed for the sabot slug's gyroscopic stabilization. You can fire them from smoothbore barrels, but you'll lose the accuracy advantage that makes sabot slugs worth the extra cost. Most modern slug guns (Savage, H.R., dedicated rifled-barrel shotguns) are set up for sabot slugs and will give you the extended range and grouping these loads are designed for.
The main differences come down to material and design. Traditional foster slugs are lead-core with less consistent expansion, while these Copper Impact rounds use solid copper that expands reliably and keeps nearly all its weight. Combined with the sabot stabilization, this gives you better accuracy at distance and deeper, more consistent penetration. Foster slugs are simpler and work fine in smoothbore barrels, but if you have a rifled barrel, sabot slugs deliver noticeably better performance.
With a rifled barrel and the 1600 fps velocity of this load, you can make confident shots out to 100 yards and beyond, depending on your specific gun and your shooting ability. Many hunters see sabot slugs staying effective to 150 yards or more, which is a significant advantage over rifled slugs. Always pattern your shotgun to verify your particular setup's accuracy limits before heading into the field.
Solid copper projectiles expand on impact and don't penetrate the way a solid steel rod would, but they do maintain more weight during expansion than fragmenting slugs. For deer and similar-sized game, the expansion and weight retention give you good energy transfer without excessive penetration. The design is purpose-built for hunting rather than barrier penetration, so you get the right balance of stopping power and terminal performance for the field.
| Caliber/Gauge | 20 Gauge |
|---|---|
| Cost per Round | 4.40 |
| Length | 2.75" |
| Manufacturer | |
| Manufacturer Part Number | X20CLF |
| Shipping Weight | 0.38 |
| Shot Size | Sabot Slug |
| Units per Box | 5 |
| UPC | 020892025844 |
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