Forster #220 Inside Neck Reamer (.220 Dia) for .224 Bullets NR1220

Description

The Forster Neck Reamer #220 is a case-prep tool built to clean up the inside of your cartridge necks by shaving away excess brass. When neck walls get too thick, they can crowd the chamber, bump up pressures, and throw the occasional flyer. This reamer takes care of that by cutting the inside neck to a consistent thickness so bullet release and chambering stay predictable round after round. It carries a true .220 inch cutting diameter and is the standard off-the-shelf choice for working with .224 inch bullets.

One thing worth knowing up front: the #220 (NR1220) is a wildcat reamer. Unlike standard Forster neck reamers that are run after firing and before sizing, the .220 diameter version is designed to be used after the sizing operation, right before you seat bullets. It's a common favorite among reloaders converting brass from one caliber to another and anyone who likes to dial in neck tension on their .224 cases.

How the Forster #220 Neck Reamer Earns Its Keep

The cutter is ground from high-grade, wear-resistant tool steel, so it holds a sharp edge through plenty of brass. The staggered tooth design is the real trick here, it slices through the neck walls smoothly and keeps chatter out of the cut. That means a cleaner, more uniform inside neck without the rough finish you'd get from a lesser tool.

Fitting the Forster Neck Reamer to Your Setup

This reamer mounts in the cutter of a Forster Case Trimmer in place of the pilot. If you're already running the Original, Classic, or Power Case Trimmer, it drops right in, you just slide the shank into the pilot hole of the cutter shaft and snug the set screw. A quick tip from the bench: brush the chips away between cases to keep the cut clean. If you want to check whether your necks even need reaming, slide a bullet into a fired, unsized case neck and feel for interference. If it drags, that neck is a candidate for this tool.