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.
Claims8
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;
- and
- wherein the CLT tool is rotated in order to allow the end cutter, inside chamfer cuter 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 of close clearance fit to casing neck;
- a case length stem;
- a pin of close clearance 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 firearm casing for reloading using a Case Length Trimmer (CLT) for trimming a brass firearm casing to length, or squaring a case using the steps of:
- a) selecting the appropriate pilot, case length stem (CLS), flash hold pin (FHP), shell holder retainer and cutter;
- b) adjusting a pilot protrusion to set the case 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 the casing neck with 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.