Hornady Lock-N-Load Cartridge Gauge 300 Blackout brand_-Gamebird controlled through a rubber-enhanced zoom

controlled through a rubber-enhanced zoom ring and a speed-focused eyepiece for fast target acquisition

Its shallow 25mm-format housing keeps the mounting envelope compact enough for modern SUV and 4x4 bull bars

4 inches at its widest point

its soft rubber over-mould keeping a sure grip even with wet or bloodied hands

Hornady Lock-N-Load Cartridge Gauge 300 Blackout brand_-Gamebird controlled through a rubber-enhanced zoomThe Hornady Lock N Load Cartridge Gauge for 300 AAC Blackout is a calibre specific reloading tool that allows handloaders to confirm their sized cases and loaded rounds sit within SAAMI chamber dimensions for this cartridge. The 300 Blackout is particularly popular with those using suppressed rifles, where reliable feeding and chambering are critical and the cartridge's shorter overall length and . 308 calibre bore mean cases formed from trimmed . 223