Brenneke | TKO | Lead Free Tin | Slug | 12 GA | 70MM | 18.9 Grams / 292 Grs | 5 each of 5 rounds as 25 Rounds Total
 
Our revolutionary TKO® (Tin KnockOut) shotgun sabot is the world’s first lead-free slug designed for use in both smoothbore and rifled barrels, using any choke.
After years of painstaking R&D, we’ve created a 12 GA projectile made of tin - yes, tin - that provides outstanding penetration, stopping power, accuracy, velocity and energy (2607 ft. lbs at 2001 fps), yet is completely safe for you and other living creatures.
Slug Design
Check the original BRENNEKE quality features of a TKO®:
Tin point with ribs that point to the right ensure smooth choke passage
Patented rear slides into point after the impact
 
https://www.brennekeusa.com/hunting-ammunition/tkor/