Description
The Swift A-Frame in 7mm, .284" diameter, 160 grain, is one of the most respected bonded hunting bullets a handloader can seat. Built with a soft semi-spitzer lead nose, a bonded dual-core design, and a pure copper jacket, it's engineered to open up reliably while holding its shape under serious stress. Swift builds this bullet to expand around 2.2 times its original diameter while keeping 95 percent or more of its starting weight, which is exactly why hunters reach for it when the animal on the other end is big and tough.
What Makes the 7mm A-Frame Tick
The magic is in the internal wall, or "frame," that separates the front and rear lead cores. The front core bonds to the jacket and mushrooms wide, while the protected rear core drives deep penetration and keeps the bullet together. The pure copper jacket and tapered profile help meter expansion so you get consistent terminal performance whether the bullet arrives fast up close or has slowed down way downrange. Swift lists reliable expansion starting around 1,650 fps on the low end and structural integrity at velocities north of 3,000 fps, so it covers a lot of ground.
Loading the .284" 160 Grain A-Frame
This is a flat-base bullet with a G1 ballistic coefficient of roughly .450 and a sectional density near .283, and it carries a cannelure for crimping. It's a natural fit for the whole 7mm family: 7mm Rem Mag, 7mm-08, 7×57, .280 Rem, 7mm WSM, 7mm Weatherby, and the fast magnums like the 7mm STW. Field experience backs up the reputation, with hunters recovering bullets that held well over 90 percent of their weight after passing through heavy game. Many report tight groups too, so you don't trade accuracy for toughness.
Game It's Built For
At 160 grains, this A-Frame shines on elk, moose, big boar, and African plains game like kudu, gemsbok, and eland. It's a sturdily constructed bullet, so it's at its best on larger-bodied animals where deep, straight penetration matters more than explosive expansion. If you want a 7mm bullet you can trust from the woods to another continent, this one has earned its stripes.
Key Specifications
- Manufacturer: Swift Bullet Company
- Caliber: 7mm
- Bullet Diameter: .284"
- Bullet Weight: 160 grain
- Bullet Style: A-Frame Bonded Semi-Spitzer (AFSS)
- Base Design: Flat Base
- G1 Ballistic Coefficient: 0.450
- Sectional Density: 0.283
- Cannelure: Yes
- Jacket Material: Pure Copper
- Lead Free: No
- Manufacturer Part Number: 281607
- UPC: 713351281607
What’s Included
- 50 Swift A-Frame 7mm .284" 160 gr bonded semi-spitzer bullets (reloading projectiles, not loaded ammunition)
Frequently Asked Questions
Is the Swift A-Frame 7mm 160 gr loaded ammunition or a reloading bullet?
This is a reloading projectile only, not loaded ammunition. You'll need your own brass, primers, and powder to assemble finished cartridges. It's intended for handloaders working up loads for the 7mm family of cartridges.
What cartridges work with the .284" 160 grain A-Frame?
It fits any cartridge that uses .284" diameter 7mm bullets, including the 7mm Rem Mag, 7mm-08, 7×57, .280 Rem, 7mm WSM, 7mm Weatherby, and 7mm STW. Just keep in mind your barrel's twist rate should be able to stabilize a 160 grain bullet, which most 7mm rifles handle fine. Always consult current published load data for your specific cartridge.
What game is the 160 grain 7mm A-Frame best suited for?
This one really earns its keep on larger, tougher animals like elk, moose, big boar, and African plains game such as kudu, gemsbok, and eland. Its bonded, dual-core construction is built for deep penetration and holding together, so it's a better match for big-bodied game than for lighter, thin-skinned animals. Hunters routinely recover these bullets with 90 percent or more of their original weight intact.
Does the Swift A-Frame expand well at lower velocities?
It's designed to begin reliable expansion around 1,650 fps, so it opens up across a wide range of impact speeds. In milder cartridges like the 7mm-08, it won't mushroom quite as dramatically as it does when launched from a fast magnum, but it still performs cleanly on deer-sized game. For the widest expansion, heavier velocity cartridges let the bullet show off what it can do.





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