HORNADY A223 223 REM LOCK-N-LOAD MODIFIED CASE

The Hornady Lock-N-Load Modified Case 223 Remington (A223) is a brass tool case built for reloaders who use Hornady O.A.L. and Precision Gauges to set exact bullet seating depth in 223 Rem chambers. This A223 modified case for 223 Remington works with Lock-N-Load gauges so you can match cartridge overall length to your specific rifle rather than relying only on manual data.

Key Features

• Manufacturer part number: A223
• Cartridge: 223 Remington
• Case family: Hornady Lock-N-Load Modified Case A Series
• Intended use: for use with Hornady Lock-N-Load O.A.L. and Precision Gauges
• Material: brass modified case
• Case body: manufactured to SAAMI 223 Remington chamber dimensions
• Neck: approximately 0.002 inch oversize to accept standard 223 bullets for measurement
• Case head: threaded at the head to attach directly to Hornady gauges
• Alignment: fine thread interface helps keep the case square in the rifle chamber
• Quantity: one modified case per package

Special Features

• The A223 modified case uses a threaded case head that screws securely into Hornady O.A.L. and Precision Gauges so the case stays aligned while you push the bullet into contact with the rifling.
• The slightly oversized neck lets a 223 bullet slip into the case mouth easily while maintaining light grip, which supports smooth movement during overall length checks.
• Hornady builds the A223 to SAAMI 223 Rem specifications, giving you a chamber realistic baseline instead of a generic test tube or simulated bullet profile.
• Interchangeable modified cases such as the A223 let you use one Hornady gauge body across many calibers by swapping cases, which keeps your tooling simple.
• The standard 223 Rem case profile mirrors live brass, so the way the bullet sits in the neck and shoulder during gauging closely matches your loaded ammunition geometry.

Practical Benefits

• The Hornady Lock-N-Load Modified Case 223 Remington (A223) gives you a repeatable way to find the cartridge length that fits your rifle’s freebore so you can tune seating depth for accuracy instead of guessing from book lengths.
• Because the A223 case works with compatible Hornady straight and curved gauges, it fits many bolt action and semi automatic 223 Rem rifles that accept the tool and lets you standardize your process across multiple guns.
• The brass construction and oversize neck let you use the same bullets you plan to load, so the distance to the lands you measure transfers cleanly to your seating die settings.
• If you load 223 Remington for varmint, training, or target rifles, the Hornady Lock-N-Load Modified Case 223 Remington (A223) is a practical choice that helps your handloads match your rifle’s chamber and perform the way you built them.