I have a distant relative that recently bought a .300 Blackout cal. Rifle. I know NOTHING about them but he has asked me if I could reload some ammunition for him. Please educate me. In these hard times how difficult is it to get reloading dies, bullets, powder, brass and primers ?. I assume it takes a .30 cal. bullet but what is standard and what powder and loading data should I use. I have a feeling that the initial cost will be prohibitive for the amount of ammo he might use.