8MM X 57 MAUSER: Use to check 8mm x 57 Mauser for the SAAMI-specified 19° shoulder angle.
RIMLESS CARTRIDGE HEADSPACE: The proper use of Headspace Gauges is the most reliable way to test rifle chamber length. Headspace in a rimless cartridge is the distance between the bolt face and a datum line, determined by SAAMI, where the front of the cartridge rests on its shoulder when the bolt is closed.
FIELD: FIELD Gauges are slightly shorter than the SAAMI maximum in order to give a small safety margin. If a rifle closes on a FIELD Gauge, its chamber is dangerously close to, or longer than, SAAMI-specified maximum chamber size. If chamber headspace is excessive, the gun should be taken out of service until it has been inspected and repaired by a competent gunsmith.
PRECISION MACHINED: Manufactured from top-quality, hardened steel and precision ground to ANSI and SAAMI tolerances. Headspace tolerance ground to a very exacting ±.00015. Each Headspace Gauge thoroughly inspected with NIST-certified measurement tools to ensure the highest quality product.
MEASURING MEANINGFUL HEADSPACE: Properly speaking, and for safety purposes, one measures “headspace” as the difference between the length of a standard cartridge, as represented by a Gauge, and the gun's actual chamber length , when the head of the cartridge is flush against the bolt face.
308 Winchester Headspace Gauge Set GO - NO-GO - Field
SAR 866
Forster Products .308 Gauge Neck Tension Gauge, Case Mouth Gauges for Reloading, Case Prep, Four Stepped Diameters with Size Etched on Each Tool
SAR 233
Forster Collet Bullet Puller Collet 22 Caliber (224 Diameter)
SAR 131
Forster Products Bench Rest Ultra Micrometer Seater Die 300 AAC Blackout
SAR 596
Saudi Arabia
