The Hornady .30 Caliber MonoFlex/FTX Seating Stem (Hornady part no. 397115) is a replacement seating die insert shaped to match the polymer-tipped ogive of Hornady’s 140-grain MonoFlex and 160-grain FTX bullets. Fitted into a Hornady seating die, it cradles the bullet’s tip profile as the ram drives it into the case mouth, so the soft polymer point doesn’t deform or seat off-center the way a generic flat-nose stem can cause. It’s a small but essential part for any reloader running Hornady‘s .30 caliber lever-action ammunition components, keeping seating depth and bullet alignment consistent load after load. Designed as a direct-fit replacement or spare for an existing Hornady seating die.

Key Specifications

• .30 Caliber bullet compatibility, matched to the diameter of 140gr MonoFlex and 160gr FTX projectiles.
• MonoFlex and FTX profile stem contour, shaped to the polymer-tip ogive so the seating ram doesn’t crush or misalign the tip.
• Seating die insert product type, installed inside a compatible Hornady seating die rather than used as a standalone tool.

Frequently Asked Questions

What is a seating stem used for? It’s the insert inside a seating die that contacts the bullet’s nose as the press seats it into the case, and it must match the bullet’s ogive shape to avoid deforming a polymer tip.

Will this stem work with other .30 caliber bullets? It’s contoured specifically for the 140gr MonoFlex and 160gr FTX ogive, so it’s built for those two Hornady bullet profiles rather than as a universal .30 caliber stem.

Buy the Hornady .30 Caliber MonoFlex/FTX Seating Stem

Pick up this seating stem from Schaefer Defense’s reloading dies selection and keep your MonoFlex and FTX handloads seating true. Order it from our Lubbock, Texas gun shop for fast, direct shipping.