The Redding Instant Indicator with Dial Indicator for .243 Winchester is a mechanical comparator tool engineered to verify case headspace, shoulder bump, and bullet seating depth uniformity. Screwing directly into any standard 7/8"-14 threaded reloading press or pairing with the included Range Adapter for portable bench use, this tool provides direct-reading comparative measurements using an integrated mechanical dial indicator. It enables reloaders to measure the base-to-shoulder datum of fired versus resized brass and inspect bullet seating depth off the ogive rather than the meplat, streamlining brass preparation and die calibration.

Key Features

• Direct-Reading Dial Indicator: Features a 1" travel mechanical dial indicator graduated in 0.001" increments for precise comparative readings without requiring electrical power.
• Headspace and Shoulder Bump Verification: Measures the base-to-shoulder datum line to verify exact 0.001" to 0.002" shoulder bump when setting up full-length sizing dies.
• Bullet Seating Uniformity: Uses a dedicated bore diameter bushing to measure seated bullet depth from the ogive profile rather than uneven bullet tips.
• Dual-Mount Versatility: Mounts via standard 7/8"-14 die threads directly in a reloading press ram setup or functions as a standalone field comparator with the supplied Range Adapter.
• Comprehensive Gauge Kit: Includes the die body, dial indicator, bore diameter bushing, surface contactor, shoulder contactor, precision headspace gauge, and Range Adapter.

Specifications

• Calibre: .243 Winchester (standard geometry)
• Thread Interface: Standard 7/8"-14
• Measurement Resolution: 0.001"
• Dial Travel: 1"
• Mechanism: 100% mechanical (no batteries or power inputs required)
• Package Weight: Approximately 0.45 kg to 0.60 kg

Who is the Redding 243 Win Instant Indicator W/Dial Indicator for?

• Precision handloaders tuning .243 Winchester ammunition for long-range rifle competition — requires direct monitoring of shoulder bump and ogive seating consistency down to 0.001" resolution on standard 7/8"-14 press threads to achieve uniform ignition volumes and repeatable ballistic performance with this precision case headspace gauge.
• Reloaders sorting mixed .243 Win fired brass by chamber provenance — enables rapid batch sorting based on base-to-shoulder datum variance across individual rifle chambers using calibrated 0.001" dial indicator graduations on standard .243 Winchester case profiles.

Less suitable for: Reloaders working with modified shoulder angles such as .243 Winchester Ackley Improved (40° shoulder) or distinct bodies like .243 WSSM, which require dedicated caliber-specific comparator bodies, or those requiring absolute SAAMI chamber verification, which requires dedicated SAAMI go/no-go steel gauges.