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The Swift A-Frame has earned its reputation as a go-to bullet for hunters who want their shot to count on big, tough animals. This 7mm (.284) 140 grain projectile uses a design that stands apart from a standard cup-and-core bullet. It carries two lead cores separated by an internal wall of copper, with the front core chemically bonded to the jacket. That bonding keeps the expanded lead locked to the jacket instead of shedding it, which is why recovered A-Frames so often look like textbook mushrooms with nearly all their weight intact.
Upon impact, the bonded front core opens up in a controlled fashion and mushrooms back until it hits that internal partition, which puts the brakes on expansion right where you want it. The rear core and thick, tapered pure copper jacket stay intact and keep driving, giving you the deep, straight-line penetration that matters on a quartering shot or when you catch heavy shoulder bone. Weight retention on the A-Frame runs around 95 percent, putting a lead-core bullet in the same league as monometals for staying together.
This is a flat-base, semi-spitzer bullet with a small amount of lead exposed at the tip. The soft nose is protected against recoil battering while rounds sit in the magazine, and the tapered jacket geometry helps keep expansion consistent across a wide velocity window. That makes it a solid match for everything from the mild-mannered 7mm-08 Remington up through the .280 Remington, 7mm Rem Mag, 7mm WSM and the fast Weatherby and RUM cases.
Keep in mind the A-Frame is built around terminal performance rather than ballistic coefficient, so it shines inside realistic hunting ranges rather than extreme long-distance work. For deer, black bear, elk, and plains game where you need a bullet that holds together and punches through, the 7mm 140 grain A-Frame is hard to beat.
The A-Frame uses two lead cores separated by an internal copper wall, with the front core bonded to the jacket. The front expands and mushrooms back to that partition while the rear core stays intact to keep penetrating. The result is controlled expansion with weight retention around 95 percent, well beyond what a typical cup-and-core bullet delivers.
The .284 diameter covers the whole 7mm family, so these work in the 7mm-08 Remington, .280 Remington, 7mm Rem Mag, 7mm WSM, 7mm Weatherby Magnum and 7mm RUM, among others. The A-Frame's design handles a wide velocity range, so it performs whether you're running a mild cartridge or a fast magnum.
Yes. The bonded cores, thick tapered jacket, and high weight retention let it hold together through heavy bone and steep quartering angles, which is exactly what you want on elk, moose, bear, and tough plains game. It trades a bit of expanded diameter for deeper, more reliable penetration.
They're designed around terminal performance rather than a high ballistic coefficient, so they're at their best inside realistic hunting distances rather than extreme long range. For shots out past 400 yards, a higher-BC bullet is the better tool. Inside normal hunting ranges the A-Frame is tough to top.
| UPC | 713351281409 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 281409 |
| Shipping Weight | 1.1313 |
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