Barnes VOR-TX Expander 12 Gauge Tipped Slug Ammunition
Barnes VOR-TX Expander ammunition combines a polymer-tipped, all-copper hunting slug with the consistency of a factory-loaded premium shotshell. Barnes designed this 12 gauge load to provide controlled expansion, high weight retention and deep penetration for hunting applications.
Each 2-3/4-inch shell contains a box-marked 437-grain Expander Tipped sabot slug with a published muzzle velocity of 1,450 feet per second. This is Barnes’ nominal one-ounce slug load; one ounce equals 437.5 grains, which Barnes rounds to 437 grains on the current packaging and 438 grains in its online product title. Barnes packages five rounds in each box.
Polymer-Tipped All-Copper Sabot Slug
The VOR-TX Expander uses a solid-copper projectile rather than a conventional lead-core slug. Its polymer tip improves the slug’s aerodynamic profile and helps initiate expansion after impact.
Because the projectile is formed from copper rather than a separate jacket and lead core, it cannot experience conventional core-and-jacket separation. Barnes emphasizes high weight retention and deep penetration as primary advantages of this construction.
437 Grains on the Box and 438 Grains Online
The current product packaging identifies the slug as 437 grains, while Barnes’ online product title identifies it as 438 grains. Both descriptions refer to the same nominal one-ounce projectile because one avoirdupois ounce equals 437.5 grains.
This listing uses 437 grains in the product name and specifications to match the physical packaging being sold. The ammunition remains Barnes manufacturer part number 20733 with UPC 716876437122.
Hunting-Oriented Terminal Performance
Barnes developed the VOR-TX Expander line to deliver rifle-like performance from a compatible slug gun. The combination of controlled expansion, weight retention and penetration makes this load particularly well suited to deer and other game for which 12 gauge slug ammunition is appropriate and lawful.
The load produces approximately 2,042 foot-pounds of muzzle energy under Barnes’ published test conditions. Barnes’ ballistic data lists a velocity of 1,313 fps at 50 yards and 1,198 fps at 100 yards, with corresponding energy figures of 1,676 and 1,395 foot-pounds.
Published Ballistic Performance
| Distance |
Velocity |
Energy |
Trajectory |
| Muzzle |
1,450 fps |
2,042 ft-lb |
— |
| 50 yards |
1,313 fps |
1,676 ft-lb |
0 inches |
| 100 yards |
1,198 fps |
1,395 ft-lb |
-3.5 inches |
| 150 yards |
Not published |
Not published |
-13.2 inches |
Published trajectory data uses Barnes’ specified test conditions, including a 50-yard zero and 1.5-inch sight height. Actual velocity, accuracy and trajectory vary according to barrel length, firearm, sights and environmental conditions.
Confirm Firearm and Barrel Compatibility
This ammunition is intended only for shotguns chambered for 12 gauge 2-3/4-inch or longer shells. The barrel, choke and firearm must also be approved for the use of sabot slug ammunition.
Sabot-slug accuracy can vary significantly among individual shotguns and barrel configurations. Consult the firearm or barrel manufacturer regarding suitable slug types, choke restrictions and rifling requirements before use. Never fire a slug through a barrel or choke that the manufacturer does not approve for slug ammunition.
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