• Out-of-Stock

Starline

9mm Winchester Magnum Brass Cases Starline 100 pcs

2021

Starline 9mm Winchester Magnum Brass Cases, Bulk Pack of 100 Units

Starline Precision Ammunition Components is dedicated to manufacturing metallic cartridge cases with the highest level of dimensional accuracy and consistency. Each 9mm Winchester Magnum brass case is engineered to meet or exceed SAAMI (Sporting Arms and Ammunition Manufacturers’ Institute) specifications, ensuring optimal chamber fit and reliable ballistic performance for both handloaders and professional reloaders.

These cases undergo a specialized heat treatment process designed to enhance the metallurgical properties of the brass. This thermal cycling imparts superior tensile strength and elasticity, allowing the case to withstand repeated firing and resizing cycles without compromising structural integrity. The result is a durable, long-lasting case that maintains consistent internal volume and wall thickness, critical factors for precision reloading and safe ammunition assembly.

Manufactured from premium new, unfired brass with no primer pockets pre-primed, these cases require trimming and chamfering prior to bullet seating. Reloaders should carefully inspect each case mouth for roundness and uniformity, as slight deformation can occur during manufacturing or transport. To ensure smooth bullet seating and optimal neck tension, it is recommended to run the case necks through an expander die. This step will restore perfect concentricity and slightly flare the neck for easy projectile insertion.

Due to the annealing process, some cases may exhibit discoloration or spotting on the neck and body. This is a normal byproduct of the controlled rapid heating and quenching cycle applied by the manufacturer to achieve the ideal hardness and flexibility balance. The annealing ensures the brass can expand and contract reliably during firing, reducing the risk of case head separation and improving reload longevity.

Reloaders should also deburr and remove any residual flash or burrs from the case mouth before loading to prevent bullet deformation and ensure consistent chambering. These Starline 9mm Winchester Magnum brass cases represent a premium choice for precision handloaders seeking consistent internal ballistics, enhanced case life, and superior reloadability in high-pressure semi-metallic cartridge applications.

€38.87
Tax included
Quantity

Out-of-Stock

New Account Register

Already have an account?
Log in instead Or Reset password