Precision reloading starts with clean, uniform case necks, and the Forster Products 0.4545" inside neck reamer is built to deliver exactly that. This tool removes excess brass from the inner walls of your case necks—a critical step that many handloaders overlook but serious shooters rely on for consistent bullet seating and improved concentricity. If you're pushing for tighter groups and more reliable ammunition, an inside neck reamer belongs in your prep routine.
Forster manufactures this reamer from high-grade, wear-resistant tool steel, ground to a precise .0025" to .003" over maximum bullet diameter. The staggered tooth design cuts smoothly without chatter, producing clean results without the vibration and surface damage that can come from poorly designed tools. This matters: rough or eccentric necks translate to runout and inconsistency downrange.
Inside neck reaming fits into a specific sequence in your case prep workflow. You'll perform it after firing cases with a full load but before neck or full-length sizing. The simplest way to check whether your cases need reaming is straightforward—take a fired, unsized case and try to slip a bullet into the neck. If you feel interference, that's brass buildup, and the reamer will clean it out. For those who want to measure instead, a tubing micrometer gives you exact wall thickness data.
Whether you're a precision rifle competitor, a dedicated handgun reloader, or someone committed to getting the most from quality brass, this Forster reamer is a workhorse that handles the job without fuss.
Key Features
- High-grade, wear-resistant tool steel construction for durability
- Ground to .0025" to .003" over maximum bullet diameter for precise fit
- Staggered tooth design eliminates chatter and produces smooth cuts
- Sized specifically for .4545" case necks
- Removes excess neck brass for consistent bullet seating and improved concentricity
Specifications
| Bore Size | 0.4545" |
| Material | High-grade, wear-resistant tool steel |
| Reaming Tolerance | .0025" to .003" over maximum bullet diameter |
| Tooth Design | Staggered |
Frequently Asked Questions
When should I use an inside neck reamer in my reloading process?
Perform inside neck reaming after firing cases with a full load but before you run them through a neck sizing die or full-length sizing operation. This sequence ensures you're working with brass that's been fired under load and are removing buildup before the final sizing step.
How do I know if my cases actually need reaming?
The quickest check is to take a fired, unsized case and try to slide a bullet into the neck. If you feel resistance or interference, excess brass is present and reaming will help. For precise measurement, use a tubing micrometer to measure wall thickness and compare against your target.
What's the difference between inside neck reaming and outside neck turning?
An inside neck reamer removes excess brass from the interior of the case neck wall. Outside neck turning removes material from the outer surface. Each addresses different types of neck inconsistency; inside reaming is the simpler approach for most handloaders dealing with buildup from repeated firing and sizing.
Will this reamer work with my other reloading equipment?
This is a precision cutting tool sized for .4545" case necks. Compatibility depends on your specific cases and your reloading setup. Verify that your cases match this bore diameter before purchasing.
