Swift A-Frame 308 Win 165gr – Proven Deep Penetration Ammo

Description

The A-Frame is a different animal from a tipped hunting bullet, and the Swift A-Frame 308 Win 165gr is the load to reach for when penetration matters more than trajectory. Swift builds it with two lead cores separated by a solid copper wall. The front core is bonded and expands, the rear core cannot, and the wall between them stops expansion cold at roughly twice the original diameter.

• How the A-Frame design actually works
• Full specifications
• When deep penetration is the priority
• Honest notes before you buy
• A-Frame or Scirocco II, which one
• The bottom line

How the A-Frame design actually works

Most hunting bullets are a compromise between expansion and penetration, and they solve it by controlling how fast the jacket peels back. The A-Frame in the Swift A-Frame 308 Win 165gr solves it mechanically instead. The bonded front section mushrooms and stays attached, then the solid partition arrests the process, leaving an unexpanded rear core that behaves like a solid and keeps driving forward.

The practical result is weight retention above ninety five percent and expansion held to about 2.2 times caliber. That is less frontal area than a tipped bullet gives you and considerably more remaining mass, which is exactly the trade you want on an animal with heavy bone. The Swift A-Frame 308 Win 165gr is built to reach the far side.

Full specifications

• Caliber: 308 Winchester
• Bullet weight: 165 grain
• Bullet: A-Frame bonded dual core soft point
• Muzzle velocity: 2796 fps
• Muzzle energy: 2864 ft-lbs
• Ballistic coefficient (G1): 0.367
• Case: reloadable boxer primed brass
• Quantity: 20 rounds per box
• Part number: SB10049

The 0.367 ballistic coefficient is the honest cost of that construction. A round nose profile with a partition inside does not fly like a sleek polymer tip, so the Swift A-Frame 308 Win 165gr sheds velocity faster and drifts more in wind. Inside 300 yards that difference is small. Past 400 it matters, and you should choose accordingly.

When deep penetration is the priority

Hogs with a shoulder shield, elk quartering away, black bear at close range in thick cover, moose. These are the situations the Swift A-Frame 308 Win 165gr was designed around. A tipped bullet can open too quickly on heavy bone and stop short. A partitioned bonded bullet keeps a solid rear core intact and pushes through, which is the difference between a recovery and a long unhappy afternoon.

It is also the load that gives you margin on a bad angle. Nobody plans to take a raking shot, but animals move. With the Swift A-Frame 308 Win 165gr in the chamber the bullet has a realistic chance of reaching vitals from an angle a lighter constructed bullet would not manage.

Honest notes before you buy

This is expensive ammunition, more so than the tipped loads, because the A-Frame is a labor intensive bullet to make. That is the honest reason for the price. Practice with something cheap, confirm your zero with a few rounds of the Swift A-Frame 308 Win 165gr, and carry the rest.

Do not expect match accuracy either. The A-Frame is a hunting bullet and a good rifle will usually give you around an inch and a half at a hundred yards with it, which is plenty for its purpose and not what you would pick for a target match. Buying the Swift A-Frame 308 Win 165gr to shoot groups misses the point of the bullet entirely.

A-Frame or Scirocco II, which one

Swift makes both for a reason. If your hunting is open country and the shots are long, the Scirocco II with its higher ballistic coefficient is the better tool. If your hunting is close, thick, or involves animals with serious bone, the Swift A-Frame 308 Win 165gr is. The 165 grain weight also splits the difference nicely in a 308, heavier than the 150 for penetration but not so heavy that trajectory suffers badly.

There is no wrong answer here, only a mismatch. Hunters who carry the Swift A-Frame 308 Win 165gr in timber and switch to a tipped load for a plains hunt are doing exactly the right thing. If you only want to own one, ask yourself what the biggest animal you might shoot is, and buy for that.

The bottom line

For close cover, heavy game and any shot where the bullet has to go through something first, the Swift A-Frame 308 Win 165gr is one of the most dependable 308 loads made. You can read more about the bullet design at swiftbullets.com, or browse the rest of our stock on the MAG5 Firearms ammunition page.

MAG5 Firearms keeps the Swift A-Frame 308 Win 165gr in stock and moving, and we are glad to talk through bullet choice before you order. If you are working up a load for a new rifle, a single box of the Swift A-Frame 308 Win 165gr is a sensible place to start.