Lyman Top Punch 677

• Bullet-Nose Specific Fit: The Lyman Top Punch 677 is made to match a specific bullet nose profile, helping the sizing and lubricating process apply pressure evenly without flattening or marking the nose.
• Cleaner Bullet Sizing: By supporting the bullet correctly from the top, this punch helps maintain bullet shape during use in Lyman lube/sizing equipment, which matters for consistent finished bullets.
• Steel Construction: The steel body stands up well to repeated workshop use and gives the tool the rigidity needed for precise alignment during bullet sizing operations.
• Made in USA: USA manufacture is a practical advantage for reloaders who want established Lyman tooling for casting and sizing setups built around the brand’s long-running equipment.
• RCBS Interchangeability: This top punch is listed as interchangeable with RCBS, which makes it easier to integrate into an existing bullet-casting bench without changing the whole setup.

About the Lyman Accessories Series

Lyman Accessories covers the small but essential tools that keep a reloading or bullet-casting bench working efficiently. Within the Lyman lineup, this series supports the company’s core presses, dies, case-preparation tools and casting equipment with purpose-built parts designed for specific tasks rather than general use. That matters in bullet sizing, where the shape of the contact surface can affect how well a cast bullet keeps its intended form through the lubricating and sizing process.

For bullet casters, the series includes practical workshop components such as top punches, sizing dies and related accessories for Lyman lube/sizers. The design philosophy is straightforward: each part is made to do one job accurately and repeatably, so the larger tool can work as intended. In use, that means better fit between the accessory and the bullet, less chance of deformation and a smoother workflow at the bench. The series is aimed at reloaders and cast-bullet shooters who value compatibility, mechanical simplicity and dependable fit across established Lyman equipment.

About the Lyman Top Punch 677

The Lyman Top Punch 677 is a dedicated bullet-sizing accessory made for use in bullet casting and lubricating workflows where preserving bullet shape is important. In a lube/sizer setup, the top punch supports the bullet from above while the sizing die does its work. When that contact surface matches the bullet nose correctly, pressure is distributed more evenly and the risk of nose damage is reduced. That is the practical role of this model: it helps the sizing operation stay controlled instead of forcing a generic contact point onto a shaped cast bullet.

This version is part of Lyman’s long-established top punch range and is intended for users who already know the bullet design they are loading for. Its steel construction gives it the durability expected from a bench tool that may see repeated use over long casting sessions. The silver finish keeps the tool easy to identify among other small reloading components, while the compact format makes it simple to store alongside sizing dies and mould-related accessories.

In practical terms, the value of the Top Punch 677 is consistency. A properly matched top punch helps cast bullets move through the sizing and lubricating stage with less risk of cosmetic or dimensional damage, which supports more uniform finished ammunition. For reloaders using compatible Lyman equipment, it is a simple but important part of a precise cast-bullet setup.

About Lyman

The Lyman Gun Sight Company began in 1878 in Middlefield, Connecticut, and the brand has long been associated with practical equipment for shooters and reloaders. Lyman makes equipment and accessories for shooting and reloading, with product lines that include reloading dies, presses, bullet-casting equipment and gun sights. That broad focus is especially relevant in categories like bullet sizing and casting, where the company offers both the main tools and the small supporting parts needed to keep a setup working properly.

Lyman Products is headquartered in Middletown, Connecticut, and its history in reloading was expanded when Lyman acquired the Ideal reloading-tool business in 1925. The company also continues to be known for sight products that trace back to William Lyman’s original sight design, reflecting a long emphasis on mechanical function and established shooting applications.

Main Features

• Manufacturer: Lyman
• Series: Lyman Accessories
• Country of Manufacture: USA
• Category: Bullet Sizing
• Accessory Use: Case preparation
• Material: Steel
• Weight: 145.00 g
• Color: Silver

Warranty

Lyman provides a 2-year warranty for this product. This stated warranty period covers defects in materials and workmanship under the manufacturer’s warranty terms.