Hornady Lock-N-Load Modified Case Features The Hornady Lock-N-Load Modified Case is built from brass and precisely modified to thread onto the company s Lock-N-Load Overall Length Gauge giving handloaders a repeatable way to measure the relationship between a bullet and the rifling lands in a 25 Creedmoor chamber. A special fine thread attaches the case to the gauge and ensures it stays perfectly square which is essential for getting a consistent accurate reading every time the tool is used. Because the case is a genuine Hornady product built to their own gauge system it integrates seamlessly without any adapter or workaround needed. This precision fitment reflects Hornady s decades of experience manufacturing reloading equipment and components. The case neck has been made perfectly round and opened slightly beyond standard dimensions letting a standard .257 inch diameter bullet slip into the mouth effortlessly while still seating concentrically. This concentric fit is what allows the gauge to produce a trustworthy measurement rather than a skewed one caused by a canted or off-center bullet. Handloaders working up precision loads for 25 Creedmoor rifles rely on tools like this to dial in seating depth relative to the lands for optimal accuracy. This modified case is a small but important piece of equipment for anyone serious about precision reloading in this cartridge. Hornady Lock-N-Load Modified Case Specifications Manufacturer: Hornady Model: Lock-N-Load Modified Case Caliber: 25 Creedmoor Material: Brass Quantity: 1 Diameter: .257 Available At: GrabAGun