Stiller TAC 338 Action - 416R Stainless, .747 Bolt

Details

MAGNUM FOUNDATION. PRECISION-MACHINED OPERATION.

The Stiller TAC 338 is a precision bolt-action receiver built around a substantial 1.400-inch-diameter 416R stainless steel body and a .747-inch-diameter one-piece bolt. Designed for large-format precision rifle builds, the TAC 338 combines a rigid receiver architecture with Stiller’s controlled machining and indexed barrel-tenon system.

The one-piece bolt is manufactured from 4140 steel, finished in black nitride, and fluted across the top and sides. A swept bolt handle, 90-degree bolt throw, modified M16-style extractor, and Remington 700-style plunger ejector complete the operating system.

Barrel tenon threads are cut 1.125-16 TPI UN-3B using a single-point boring process and indexed to the action’s top centerline. This controlled thread geometry is intended to maintain consistent barrel indexing across compatible Stiller actions and pre-fit barrel applications.

Features

• 416R stainless steel receiver

• 9.165" receiver length

• 1.400" receiver diameter

• .747" bolt diameter

• One-piece fluted bolt

• Swept bolt handle

• 90° bolt throw

• 4140 bolt construction

• Black nitride bolt finish

• Fluted stainless steel firing pin

• .067" firing-pin tip

• Modified M16-style extractor

• Remington 700-style plunger ejector

• Side-mounted bolt stop above the stock line

• Single-point-cut, indexed barrel tenon threads

• 1.125-16 TPI UN-3B tenon

Specifications

Manufacturer: Stiller

Model: TAC 338

Type: Precision Bolt-Action Receiver

Receiver Material: 416R Stainless Steel

Receiver Length: 9.165"

Receiver Diameter: 1.400"

Bolt Diameter: .747"

Bolt Material: 4140 Steel

Bolt Finish: Black Nitride

Bolt Design: One-Piece, Top/Side Fluted

Bolt Handle: Swept

Bolt Throw: 90°

Bolt Stop: Side Mounted

Firing Pin: Fluted Stainless Steel

Firing Pin Tip: .067"

Extractor: Modified M16 Style

Ejector: Remington 700-Style Plunger

Tenon Threads: 1.125-16 TPI UN-3B

Action Body Weight: 19 oz

Bolt Weight: 13 oz

Complete Listed Assembly Weight: 35.902 oz