SKU: 749006472
UPC: 757253003615
MPN: CT1010
The Forster Original Case Trimmer stands as a fundamental tool for reloaders who demand consistent brass preparation across a wide caliber range. This trimmer handles cases from 0.171 inches to 0.459 inches in diameter, covering everything from 5.7x28 up through 45-70 Government. For shooters building precision ammunition where case length uniformity directly affects chamber pressure and accuracy, the CT1010 delivers the mechanical precision required to keep brass within spec across multiple firing cycles.
Forster built this trimmer around a Brown and Sharpe-type collet system, which grips the case body rather than relying solely on the rim. This design choice matters because rim thickness varies between manufacturers and even within the same lot of brass. By holding the case securely at the body, trim depth stays consistent regardless of rim variation. The unit features both coarse and fine adjustment mechanisms that maintain 0.001 inch repeatability, letting you dial in exact trim lengths and hold them through entire batching sessions. The 5.375-inch base provides stable work surface, and the 0.490-inch diameter cutter shaft handles standard calibers while a dedicated 17 caliber shaft addresses the smaller bore requirements. The trimmer accepts all six Forster case trimmer accessories for chamfering, deburring, and other prep operations.
Competitive shooters prepping match brass and hunters maintaining hunting loads both benefit from the CT1010's precision. Each case requires a Forster collet (numbers 1 through 4 fit this model) and pilot matched to your specific cartridge, ordered separately based on your caliber needs. Whether you reload 204 Ruger for varmint work or 10mm Auto for defensive carry, this trimmer keeps case lengths within the tight tolerances that feed reliability and pressure consistency demand. Browse our full selection of shooting accessories and reloading components to complete your brass prep setup.
Each cartridge requires a matching collet and pilot, sold separately. Forster collets numbered 1 through 4 are compatible with this trimmer. Select the collet based on your case head diameter and the pilot based on your bullet caliber. Check Forster's compatibility charts to match your specific cartridge.
The trimmer handles cases from 0.171 inches to 0.459 inches in diameter. This covers cartridges from 5.7x28 and 17 Hornet through 45-70 Government, including common rounds like 223 Remington, 308 Winchester, 6.5 Creedmoor, and 10mm Auto. A separate 17 caliber cutter shaft is required for 17 caliber cartridges.
The dual coarse and fine adjustment system maintains 0.001 inch repeatability. The Brown and Sharpe collet design grips the case body rather than the rim, eliminating trim depth variation caused by inconsistent rim thickness between brass manufacturers or lots.
The CT1010 accommodates all six Forster case trimmer accessories, including outside neck turners, chamfer and deburr tools, and primer pocket cleaners. These accessories mount to the trimmer base and share the same precision adjustments for consistent prep work.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
