The Brenneke TKO 12 Gauge Non-Toxic Tin Sabot Slug (brand part no. SL-122TKO) was the world’s first lead-free shotgun slug built from tin, engineered to work in both rifled and smoothbore barrels through any choke. Brenneke developed the TKO, short for Tin KnockOut, as a fully lead-free alternative that still delivers serious penetration, stopping power, and accuracy for hunters who want or need non-toxic slug ammunition. The tin projectile combines with Brenneke’s proven weight-forward slug design and large frontal area to hit hard on big game while remaining completely safe for the environment around it.

Key Specifications

• Chambered for 12 gauge, 2-3/4-inch shotguns, compatible with standard-length hunting shotguns.
• Fires a 2/3 oz sabot slug, a substantial projectile weight for big game hunting.
• The slug is machined from solid tin rather than lead, making it a fully non-toxic projectile.
• Works in both rifled and smoothbore barrels, through any choke constriction, without needing a dedicated slug barrel.
• Leaves the muzzle at over 2,000 fps, a high velocity for a shotgun slug.
• Generates roughly 2,600 ft-lbs of muzzle energy, delivering serious knockdown power on impact.
• Uses Brenneke’s weight-forward design with a large frontal area for deep, controlled penetration.
• Packaged 5 rounds per box, ready for a day of big-game slug hunting.

Frequently Asked Questions

Does this slug work in a smoothbore shotgun? Yes. The TKO is built to perform in both rifled and smoothbore barrels, through any choke, without requiring a dedicated slug barrel.

Why choose a tin slug over a lead slug? Tin is completely lead-free, making the TKO a non-toxic option for hunters in areas that restrict lead ammunition while still delivering strong penetration and energy.

What game is this slug suited for? Its combination of high velocity, weight-forward design, and strong energy makes it a solid choice for deer and other big game at typical shotgun slug ranges.

Buy the Brenneke TKO 12 Gauge Non-Toxic Tin Sabot Slug

Hunters who need a lead-free slug without sacrificing performance now have a proven option in the TKO, backed by Brenneke’s decades of slug engineering. It is built to hit hard, penetrate deep, and do it without a trace of lead. Grab a box from our Brenneke lineup of shotgun shells, shipped direct from our Lubbock, Texas gun shop.