What specific rifle cartridges are compatible with the Hornady 390948 .277 caliber pilot?

This pilot is specifically sized with an internal diameter for nominal .277-inch projectile diameters. It is ideal for handloading popular Australian hunting and target cartridges including .270 Winchester, .270 WSM, .270 Weatherby Magnum, and 6.8mm Remington SPC.

Which case trimmers can be used with this Hornady #6 pilot?

The 390948 pilot is designed primarily for the Hornady Cam-Lock Case Trimmer (Item #050140) and legacy Hornady manual case trimmers. It installs easily into the trimmer cutter shaft using the built-in set-screw mechanism for secure retention during bench prep.

Will this .277 pilot work on smaller 6.5mm or larger 7mm brass cases?

No, calibre compatibility is strictly limited to .277-inch case necks. It will not fit inside smaller case necks like 6.5mm / .264" (which require Pilot #5) and will fit too loosely to provide accurate concentric alignment on larger calibres such as 7mm / .284" or .308".

Does this mechanical reloading tool require any electrical compliance or SAA/RCM certification for use in Australia?

No. Because the Hornady Cam Lock Case Trimmer Pilot is an entirely manual, non-powered steel accessory, standard Australian electrical safety criteria, 240V mains compatibility, and SAA/RCM regulatory marks are not applicable.

Trimmer Pilot - Hornady 390948

The Hornady Trimmer Pilot #6 is a precision reloading accessory engineered to guide and centre cartridge case mouths against the trimmer cutter head. Machined from solid steel, it ensures consistent, square trimming and precise overall length across .277-calibre cartridge cases. Designed primarily for the Hornady Cam-Lock Case Trimmer, this interchangeable pilot secures into standard cutter shafts via a set-screw retaining mechanism for straightforward caliber swaps on the reloading bench.

Precision Alignment: Centres .277" case necks directly with the trimmer cutter to produce square, uniform case mouths.
Solid Steel Construction: Machined from solid steel with an approximate weight of 8 to 9 grams (0.017 to 0.020 lbs) for durability during repetitive case preparation.
Interchangeable Mounting: Installs into the trimmer shaft using a set-screw mechanism, facilitating fast transitions between different cartridge calibres.
Broad Calibre Coverage: Standardised for cartridges utilizing .277-inch projectiles, including .270 Winchester, .270 WSM, .270 Weatherby Magnum, and 6.8mm Remington SPC.
Tool Compatibility: Directly compatible with the Hornady Cam-Lock Case Trimmer (Item #050140), legacy Hornady case trimmers, and select standard pilot shafts from Redding and Forster.

Product Specifications

Manufacturer Part Number: 390948
Pilot Size: Pilot #6
Nominal Internal Pilot Diameter: .277 inches
Material: Machined solid steel
Net Weight: ~8–9 g (~0.017–0.020 lbs)
Operation: Manual reloading tool accessory (non-powered)
Primary Trimmer Compatibility: Hornady Cam-Lock Case Trimmer

Who is the Hornady Cam Lock Case Trimmer Pilot for .277 Caliber for?

Australian Game Hunters — requires precise .277-inch internal diameter alignment when trimming brass for .270 Winchester and 6.8mm Remington SPC hunting loads used on deer and pigs.
Precision Target Handloaders — depends on this case trimmer pilot to maintain uniform trim lengths on .277-calibre brass when preparing match-grade ammunition on the Hornady Cam-Lock Case Trimmer.

Less suitable for: Handloaders processing case necks smaller than the .277-inch threshold (such as 6.5mm / .264" brass) or larger calibres exceeding .277 inches (such as 7mm / .284" and .30 cal / .308" brass), which require dedicated caliber-specific trimmer pilots such as Pilot #5, Pilot #7, or Pilot #8 for proper bore fit.

SKU	HN102889LP
Model #	390948
Brand	Hornady
Shipping Weight	0.1000kg

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Hornady 390948 Trimmer Pilot .277 Caliber Solid Steel

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