The Lee 5.7x28 Steel 2-Die Set is engineered for precision and reliability, catering to the discerning reloader who demands consistency from their ammunition. This comprehensive set includes a Full-Length Sizing Die and Bullet Seating Die, essential components for crafting accurate rounds tailored to your needs. Additionally, it comes equipped with a Universal Shell Holder, powder dipper, and detailed instructions complete with load data—ensuring you have all necessary tools at your disposal.
For those intending to enhance their setup with a Lee Pro Auto-Disk or Auto-Drum Powder Measure, be advised that the short charging die (LEE90668) is required but sold separately. The meticulous nature of this die set necessitates the use of Lee Resizing Lubricant—an indispensable addition to ensure smooth operation during resizing.
Recent developments in brass manufacturing have surfaced; notably, 5.7x28 brass may now be fully annealed from case mouth to rim—a factor presenting unique challenges in reloading processes. To address these concerns effectively, Lee advocates for employing both their Resizing Lubricant and FN Shellholder (LEE92183). The traditional universal shell holder proves inadequate against these softer rims as they deform under pressure when interacting with standard priming relief holes.
It’s crucial to note that while the FN shellholder excels in resizing duties due to its specialized design preventing deformation issues, it cannot serve dual functions; thus reverting back to the standard #15 shellholder becomes necessary when repriming brass cases.
An additional observation by Lee is regarding primer retention—the soft nature of this particular brass often results in primers being staked or crimped into place rather than relying on conventional press fits alone.Moreover, should you encounter difficulties during trimming where plastic bushings cause unwanted deformations on delicate new casings rest assured: simply return affected dies directly back towards factory facilities where adjustments will accommodate maximum permissible dimensions safeguarding integrity throughout every step taken within production lines themselves!