Brenneke Magnum 20 Gauge 3 in 1 oz Slug

The Brenneke Magnum 20 Gauge 3 inch 1 oz slug is a heavy 20‑gauge projectile designed for hunting applications. It uses Brenneke’s traditional ribbed lead point and a rear slide feature intended to aid performance on impact. Manufacturer-supplied data lists a muzzle velocity of 1476 fps and a projectile mass of 1 ounce (437 grains). The load is described for use in both smoothbore and rifled shotgun barrels.

Key Specifications

• The gauge is 20 Gauge.
• Shell length is 3 inches.
• Projectile weight is 1 oz.
• Projectile mass in grains is 437 grains.
• Listed muzzle velocity is 1476 fps.
• The shot material is specified as Lead.
• The shot type is Slug.
• Units per box are 5.
• Boxes per case are 50.
• Described as usable in smooth or rifled bores.

The Brenneke Magnum delivers heavy-for-gauge performance and a proven, ribbed design intended to promote consistent passage through chokes and stable flight. Its combination of mass and listed velocity makes it appropriate for hunters seeking deep penetration and predictable terminal performance from a 20 gauge slug.