Hornady A6MMC Lock-N-Load Modified Case - 6mm Creedmoor Precision Reloading Tool
$6.16
$6.75
(You save
$0.59
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- Caliber-Gauge:
- 6mm Creedmoor
- Material:
- Brass
- Function:
- Rifle
The Hornady A6MMC Lock-N-Load Modified Case for 6mm Creedmoor is a precision reloading accessory designed to work with Hornady's Lock-N-Load O.A.L. (Overall Length) gauges. If you're serious about handload accuracy—especially for a modern, high-precision cartridge like 6mm Creedmoor—this tool addresses a real problem: measuring loaded round length with the consistency and precision that modern hunting and target shooting demands. This modified case threads onto your O.A.L. gauge to give you repeatable, chamber-specific measurements accurate to .001".
The 6mm Creedmoor case is specially modified to ensure perfect chamber alignment when threaded to the gauge. Its neck is precisely round and opened slightly oversized—.002" larger than standard—so that a standard-diameter bullet seats concentrically without binding, eliminating measurement errors caused by bullet tilt or drag. The fine-thread connection between case and gauge keeps everything square and consistent, shot after shot. Because you'll be using the same bullets you intend to load in your actual cartridges, your O.A.L. measurement translates directly to the reloading bench with confidence.
This is the kind of tool that separates guesswork from data-driven handloading. Whether you're chasing tighter groups at 600 yards, tuning a new rifle, or just taking pride in ammunition that's identical from round to round, accurate O.A.L. measurement matters. The modified case comes to SAAMI specification and is compatible with both Lock-N-Load O.A.L. gauge models.
Key Features
- Fine-threaded connection to Lock-N-Load O.A.L. gauges for perfect chamber alignment
- Oversized neck (.002") accepts standard-diameter bullets concentrically
- Precision-round neck design eliminates bullet tilt and measurement error
- Enables O.A.L. measurements accurate to .001"
- Compatible with both Lock-N-Load O.A.L. gauge models
- SAAMI specification case
Specifications
| Caliber | 6mm Creedmoor |
| Designed For | Hornady Lock-N-Load O.A.L. Gauges |
| Case-Head Thread | Fine-thread design |
| Neck Diameter | .002" oversized for standard bullets |
| Measurement Accuracy | .001" |
| Specification | SAAMI |
Frequently Asked Questions
Which Lock-N-Load gauges work with this modified case?
The Hornady A6MMC threads onto either Lock-N-Load O.A.L. gauge model. Check your gauge model against Hornady's compatibility chart if you're unsure.
What bullets should I use with this modified case?
Use the same bullet diameter and design you intend to load in your finished ammunition. The oversized neck is designed to seat standard-diameter bullets concentrically, so your O.A.L. measurement will be accurate for your actual loads.
Is a gauge included with this product?
No. This is the modified case only. You'll need a Hornady Lock-N-Load O.A.L. Gauge (sold separately) to use it. A dial caliper is also not included.
How accurate are measurements with this tool?
Measurements are accurate to .001" when the modified case is threaded to the gauge and the bullet is seated concentrically in the oversized neck. Proper chamber alignment and consistent technique are critical for repeatability.
