$109.00
The 280 AI was developed by Parker Otto (P.O.) Ackley. P.O. was a lot like Roy Weatherby, a wildcatter who was in search of better solutions. His 280 AI set out to improve the .280 Rem by steeping the shoulder to 40 degrees to increase powder capacity. Weatherby is known for ballistics and velocity, our 280 AI offerings will push the industry standards on both.
Bullet Diameter: .284 (7.2mm)
Common Reference: 7mm Caliber
Max Case Length: 3.34”
Production Start: 2007
Must be 18 or older to purchase rifle ammunition. Shipping not available to P.O. Boxes, International Addresses, AK, CA, HI, MA, CT, IL, NJ, NY nor DC residents. Residents of DE, KS, OH, and WA may have additional restrictions. All ammunition is shipped domestic ground and an adult signature is required. We do not accept returns on ammunition.
The 280 AI was developed by Parker Otto (P.O.) Ackley. P.O. was a lot like Roy Weatherby, a wildcatter who was in search of better solutions. His 280 AI set out to improve the .280 Rem by steeping the shoulder to 40 degrees to increase power capacity. It was then registered by SAAMI in 2007 by Nosler and has been an underserved cartridge in the market.
Our line-up of offerings are intended to provide the market with premium hunting options.
Listen as the Weatherby Team sits down to talk about our new Non-Weatherby loaded ammunition.
Hammer Bullets™ are turned on a CNC lathe and use a unique solid copper blend that is designed for maximum terminal performance. Each bullet is weighed and micrometer measured as it is produced. The result is an incredibly consistent product with unparalleled quality control. The hollow point design, initiates expansion upon impact, shedding petals immediately, with the remainder of the bullet staying intact with a blunt front for optimal wound channel. All Hammer Custom Bullets are designed to optimize Weatherby’s flat shooting cartridges.
Take a deeper dive into Hammer Bullets with our On Our Mark podcast. We sit down with Bryan and Steve of Hammer Bullets to talk about the performance and what makes Hammer bullets different from similar projectiles.
Hammer Bullets™ are turned on a CNC lathe and use a unique solid copper blend that is designed for maximum terminal performance. Each bullet is weighed and micrometer measured as it is produced. The result is an incredibly consistent product with unparalleled quality control. The hollow point design, initiates expansion upon impact, shedding petals immediately, with the remainder of the bullet staying intact with a blunt front for optimal wound channel. All Hammer Custom Bullets are designed to optimize Weatherby’s flat shooting cartridges.
Take a deeper dive into Hammer Bullets with our On Our Mark podcast. We sit down with Bryan and Steve of Hammer Bullets to talk about the performance and what makes Hammer bullets different from similar projectiles.
| Bullet Weight | Muzzle | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|---|
| 139 gr. | 3050 | 2817 | 2596 | 2385 | 2184 | 1993 |
| Bullet Weight | Muzzle | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|---|
| 139 gr. | 2871 | 2449 | 2080 | 1756 | 1472 | 1226 |
| Bullet Weight | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|
| 139 gr. | 3.7“ | 4.4“ | 0.0“ | -10.5“ | -28.4“ |
The Sierra Tipped GameKing hunting bullet combines match levels of accuracy with deadly penetration. Sierra re-engineered their legendary MatchKing bullet into a hollow point design by way of an open pocket under the polymer tip that expands the lead core instantly upon impact. The transparent green polymer tip aids in ballistic uniformity while a tuned ogive provides industry-leading BC. The GameKing features a unique construction that utilizes a special lead alloy surrounded by a tough copper jacket to deliver excellent penetration and expansion at a variety of ranges.
The Sierra Tipped GameKing hunting bullet combines match levels of accuracy with deadly penetration. Sierra re-engineered their legendary MatchKing bullet into a hollow point design by way of an open pocket under the polymer tip that expands the lead core instantly upon impact. The transparent green polymer tip aids in ballistic uniformity while a tuned ogive provides industry-leading BC. The GameKing features a unique construction that utilizes a special lead alloy surrounded by a tough copper jacket to deliver excellent penetration and expansion at a variety of ranges.
| Bullet Weight | Muzzle | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|---|
| 150 gr. | 2950 | 2777 | 2612 | 2452 | 2297 | 2148 |
| Bullet Weight | Muzzle | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|---|
| 150 gr. | 2898 | 2569 | 2271 | 2002 | 1758 | 1537 |
| Bullet Weight | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|
| 150 gr. | 3.7“ | 4.4“ | 0.0“ | -10.2“ | -27“ |
A bonded bullet with Swift’s signature black tips designed for hunting and long-range efficiency. Pure copper jacket is progressively tapered to control expansion development throughout a wide range of velocities. Jacket and core are joined together using proven Swift bonding technology. Long driving band for improved rotational stability. Its sleek design and advanced secant ogive nose profile allows for high ballistic coefficient that produce flat trajectories for downrange hunting, making it a perfect match for Weatherby Cartridges.
A bonded bullet with Swift’s signature black tips designed for hunting and long-range efficiency. Pure copper jacket is progressively tapered to control expansion development throughout a wide range of velocities. Jacket and core are joined together using proven Swift bonding technology. Long driving band for improved rotational stability. Its sleek design and advanced secant ogive nose profile allows for high ballistic coefficient that produce flat trajectories for downrange hunting, making it a perfect match for Weatherby Cartridges.
| Bullet Weight | Muzzle | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|---|
| 150 gr. | 2925 | 2744 | 2570 | 2402 | 2241 | 2086 |
| Bullet Weight | Muzzle | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|---|
| 150 gr. | 2849 | 2507 | 2199 | 1922 | 1672 | 1449 |
| Bullet Weight | 100 yds | 200 yds | 300 yds | 400 yds | 500 yds |
|---|---|---|---|---|---|
| 150 gr. | 3.9“ | 4.6“ | 0.0“ | -10.6“ | -28.1“ |
| Hammer Bullet | Swift™ Scirocco® | Sierra® Tipped GameKing® | |
|---|---|---|---|
| Bullet Weight (grains) | 139 | 150 | 150 |
| B/C (G1) | .410 | .515 | .545 |
| Velocity (Ft/Sec) | |||
| Muzzle | 3050 | 2925 | 2950 |
| @100 yds | 2817 | 2744 | 2777 |
| @200 yds | 2596 | 2570 | 2612 |
| @300 yds | 2385 | 2402 | 2452 |
| @400 yds | 2184 | 2241 | 2297 |
| @500 yds | 1993 | 2086 | 2148 |
| Energy (FT LB) | |||
| Muzzle | 2871 | 2849 | 2898 |
| @100 yds | 2449 | 2507 | 2569 |
| @200 yds | 2080 | 2199 | 2271 |
| @300 yds | 1756 | 1922 | 2002 |
| @400 yds | 1472 | 1672 | 1758 |
| @500 yds | 1226 | 1449 | 1537 |
| Trajectory (Inches) | |||
| @100 yds | 3.7“ | 3.9“ | 3.7“ |
| @200 yds | 4.4“ | 4.6“ | 4.4“ |
| @300 yds | 0.0“ | 0.0“ | 0.0“ |
| @400 yds | -10.5“ | -10.6“ | -10.2“ |
| @500 yds | -28.4“ | -28.1“ | -27“ |
Once fired brass* available in 20 count boxes. * Box could contain mixed brands Available calibers – .240 WBY; .257 WBY; .270 WBY; .300 WBY ; 6.5-300 WBY; 6.5 WBY RPM; 7mm WBY
| Weight | 48 oz |
|---|---|
| Dimensions | 8 × 8 × 5 in |
| Bullet Options | 139 Grain Hammer Custom, 150 Grain Swift Scirocco, 150 Grain Sierra Tipped GameKing |
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