Case length trimmer (CLT) with micro-adjustment tool and method of using same
AssigneeK&M Shooting Products, LLC
InventorsRoger G. Miller, Jr., David A. Allen, Brady C. Haas
Life of this patent
Estimating the term…
Abstract
A Case Length Trimmer (CLT) combines three cutting features in a single hand tool with independent micro adjustability. The CLT operates to cut a ammunition casing to an overall length and chamfers the inside and outside case mouth diameters. Customization with multiple pilots and flash hole pin sizes maintain a consistent cut. The CLT uses these components to set actual overall case length for accuracy. The CLT can also utilizing a Micro-Adjustment Tool (MAT) for allowing precision adjustment of each parameter. These tools are can be used by individually and collectively adding a new level of consistency and precision to ammunition reloading.
Claims7
A case length trimmer (CLT) tool for use in reloading firearm ammunition comprising:
- an end cutter for cutting an end of an ammunition casing;
- an inside chamfer cutter for shaping an inside surface of the ammunition casing;
- an outside chamfer cutter for shaping an outside surface of the ammunition casing;
- a pilot having case neck stem extending therefrom positioned between a plurality of fasteners, for guiding a case neck over the tool such that the stem is configured to extend through a primer hole in the casing;
- a case length hard-stop;
- and
- wherein the end cutter, inside chamfer cutter, outside chamfer cutter are each independently adjustable and, where the CLT tool is rotated in order to allow the end cutter, inside chamfer cutter and outside chamfer cutter to machine the ammunition casing to a predetermined overall length in preparation for a firearm ammunition reload.
A Case Length Trimmer (CLT) cutting tool for use in reloading firearm ammunition comprising:
- a multi-cutter housing;
- an end cutter;
- an inside chamfer cutter;
- an outside chamfer cutter;
- a pilot sized to fit a casing neck;
- a case length stem;
- a pin sized to fit to a casing flash hole;
- a case length hard-stop;
- a casing holder;
- an adapter having a shank for use with a power tool or handle;
- and
- wherein the CLT tool is used in machining a casing to a predetermined overall length in preparation for a firearm ammunition reload.
A method for preparing a brass firearm casing for reloading using a Case Length Trimmer (CLT) for trimming the casing to length, or squaring the casing using the steps of:
- a) selecting the appropriate pilot, case length stem (CLS), flash hole pin (FHP), shell holder retainer and cutter;
- b) adjusting a pilot protrusion to set the casing length with a threaded micro-adjustment tool (MAT);
- c) adjusting the cutters with the MAT with multiple test cuts;
- d) spinning either the CLT or casing holder;
- e) guiding the mouth of a casing neck with a pilot;
- f) guiding the flash hole of the casing base with the FHP;
- and
- g) stopping cutting action by contacting the FHP with a hard-stop.
Dependencies are inferred from the claim text.