The HEADSPACE GAUGES by FORSTER PRODUCTS, INC. are essential for measuring the chamber length of rifles to ensure safety and accuracy, especially when fitting a new barrel or purchasing a used gun.
These gauges are made to SAAMI specs, with the 257 Roberts NO-GO GAUGE being 0.0005 inch under the 7.62 NATO specification for NO-GO dimensions.
They are machined steel, with sizes varying by caliber and gauge style, and some gauges are interchangeable between different cartridges within the same caliber family.
Attributes
Cartridge:
257 Roberts,7 mm Mauser (7 x 57 mm Mauser)
Style:
No Go Gauge
Delivery weight: 0.045kg