Lyman Trimmer Pilot # 22 For Select .221 .22/250 .220 .222 .223 5.6x50R MagFits Pistol Calibers: 5.7 x 28mm FN

The Lyman Trimmer Pilot #22 for select .221, .22/250, .220, .222, .223, and 5.6x50R rifle calibers, plus 5.7x28mm FN pistol rounds, is an essential reloading accessory for precision shooters and ammunition manufacturers. This trimmer pilot serves as a critical quality-control component in the case-preparation phase, ensuring uniformity and preventing dimensional inconsistencies that compromise accuracy and firearm safety.

The Lyman Trimmer Pilot #22 works by guiding the trimming cutter concentrically around the case neck and shoulder junction, preventing the cutter blade from binding or deflecting during operation. This pilot design eliminates case deformation—a common failure mode in unpiloted trimming—and produces repeatable trim lengths across all rounds in a batch. The precision-engineered fit ensures the cutter maintains perpendicularity to the case axis, which is critical for consistent neck runout and powder-column uniformity.

Reloaders preparing ammunition for AR-15 variants, bolt-action precision rifles, and FN 5.7 pistols benefit most from this pilot's compatibility with the dimensional variance inherent across the .22-caliber family while also supporting the modern 5.7x28mm FN platform used in specialized tactical and civilian applications.