Lindcott Armory Rifle · Wildcat
.30-06 Ackley Improved
The .30-06 with a 40° shoulder and reduced body taper — gains 150-200 fps over the parent case by reducing brass flow into the chamber.
- Caliber
- 0.3079″ · 7.82 mm
- Introduced
- 1960
- Case
- Rimless
- Parent
- .30-06 Springfield
- Primary use
- Hunting, Target
- Status
- Limited
- Introduced
- 1960
- Type
- Rifle
- Origin
- United States
- Inventor
- P.O. Ackley
- Manufacturer
- P.O. Ackley
- Standard
- Wildcat
- Status
- Limited
- Availability
- Scarce
- Case capacity
- 70 gr H₂O
- Twist (typical)
- 1:10
- Primer
- Large Rifle
- Case type
- Rimless
- Max pressure
- 62,405 psi
- Eff. range
- 500 yd
- Max range
- 4300 yd
- Recoil
- 14–18 ft·lb
Ballistics
- Parent case
- .30-06 Springfield
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
CIP TDCC · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.82 | 0.308 | ✓ |
| Neck ⌀ | 8.63 | 0.340 | ✓ |
| Shoulder ⌀ | 11.52 | 0.454 | ✓ |
| Shoulder angle | 40° | — | ✓ |
| Base ⌀ | 11.96 | 0.471 | ✓ |
| Rim ⌀ | 12.01 | 0.473 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.24 | 0.049 | ✓ |
| Neck length | 10.05 | 0.396 | ≈ |
| Case length | 63.35 | 2.494 | ✓ |
| Overall length | 84.84 | 3.340 | ✓ |
Size vs familiar rounds
Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. .30-06 Ackley Improved is highlighted below.
Suitable powders
1 reloading powder listed for .30-06 Ackley Improved, fastest to slowest. Cross-reference in the finder →
Reloading costestimate cost per round vs factory
Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.
Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.
Lineage
Connected reference
History
Created by P.O. Ackley by fire-forming .30-06 brass to minimum body taper and 40-degree shoulder. Increases powder capacity ~6-7%. Never commercialized but remains popular wildcat. Standard .30-06 ammo can be fired to form cases. Provides significant velocity increase over standard .30-06 with same pressures. Popular with custom rifle builders and serious handloaders.
FAQs
- What twist rate does .30-06 Ackley Improved use?
- .30-06 Ackley Improved typically uses a 1:10 twist rate.
- What bullet diameter is .30-06 Ackley Improved?
- .30-06 Ackley Improved uses a 0.3079″ (7.82 mm) diameter bullet.
- Is .30-06 Ackley Improved still in production?
- .30-06 Ackley Improved is limited; typical availability is scarce.
- What is .30-06 Ackley Improved used for?
- .30-06 Ackley Improved is primarily used for hunting, target.
- What is .30-06 Ackley Improved based on?
- .30-06 Ackley Improved is derived from the .30-06 Springfield case.
- What are the best powders for .30-06 Ackley Improved?
- Reloading powders commonly listed for .30-06 Ackley Improved include Reloader 19.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →