Forster Long Case Trimmer Base 6-1/2"

The Forster Long Case Trimmer Base 6-1/2" is a heavy-duty case trimming solution designed for handloaders working with larger rifle cartridges, big game calibers, and classic black powder rounds. Built around a longer mounting base and a larger-diameter cutter shaft than Forster's Original Trimmer, this dedicated base gives you the reach and capacity needed to process cases that demand precision and consistency. If you're loading magnum rifle rounds or working with longer cartridge cases, the Classic Trimmer setup eliminates the frustration of incompatible tools and delivers the precision trimming that consistent ammunition requires.

The 6-1/2" base accommodates cases ranging from 1 7/8" to 4 1/8" in length, with case mouth diameters up to 1/2". The larger cutter shaft (.522" diameter) provides the rigidity needed for big bore work and reduces chatter and runout. This base is compatible with Forster collets FCT2005 through FCT2008—you'll need to order collets and caliber-specific trimmer pilots separately to complete your setup. If you already own Forster's Original Trimmer and need to upgrade to a longer base for bigger cases, swapping bases is straightforward; conversely, you can use the Original Trimmer's shorter base with the Classic if you need to trim smaller cases.

Whether you're a serious rifle loader, a black powder enthusiast, or someone committed to producing match-grade ammunition, the Forster Long Case Trimmer Base 6-1/2" removes the guesswork from case length variation and delivers the kind of uniform brass preparation that shows up on the target. Forster's trimmer design has earned its reputation for reliability and simplicity over decades—no electric motor, no unnecessary bells, just a solid mechanical foundation that works the same way every time.

Key Features

• 6-1/2" mounting base sized for longer big bore and magnum rifle cartridges
• Larger cutter shaft diameter (.522") for reduced runout and improved rigidity
• Accommodates cases from 1 7/8" to 4 1/8" in length
• Handles case mouth diameters up to 1/2"
• Compatible with Forster collets FCT2005–FCT2008
• Mechanically simple design with no electric components
• Interchangeable with Original Trimmer bases for flexibility across case sizes

Specifications

Frequently Asked Questions

What calibers will the Forster Long Case Trimmer Base trim?

The base itself is caliber-agnostic—it accommodates any case from 1 7/8" to 4 1/8" in length with mouth diameters up to 1/2". Your specific caliber compatibility depends on the collet and trimmer pilot you select. Collets FCT2005 through FCT2008 are compatible with this base. You'll order collets and pilots separately based on your cartridge.

How does this compare to the Original Forster Trimmer?

The Long Case Trimmer Base is built for bigger cases. Its 6-1/2" length and larger .522" cutter shaft handle longer cartridges and big bore ammunition better than the Original Trimmer's shorter base and smaller shaft. If you need to trim smaller cases, you can substitute the Original Trimmer's base onto the same collet and pilot setup.

What do I need to buy separately to complete this trimmer?

The base alone is just that—the foundation. You'll need to order a collet (FCT2005–FCT2008, depending on your caliber) and a caliber-specific trimmer pilot separately. These components are not included with the base.

Is this trimmer manual or electric?

The Forster Long Case Trimmer is entirely manual. There's no motor or electrical components—you operate it by hand. This mechanical simplicity makes it reliable, quiet, and maintenance-friendly.