Ammo caddie with timer, power on/off switch, on/off alarm switch, holds 3 blocks, interchangeable blocks for different size cartridges
https://www.etsy.com/shop/Ontargetammocaddie?ref=seller-platform-mcnav
A few shots from 3 different stages Tikka T3X CTR, 6.5 Creedmoor, 24" bbl, Vortex Razor HD Gen II 4.5-27x56mm MRADscope, KRG Bravo stock, Area419 Hellfire Match Brake. 400 - 700 yards target distances