Manufacturing facility blanks are occasionally out there but hard to find. I don’t see blank ammo detailed in any on the nationwide catalogs that record Reside ammo. Now then Aged Western Scrounger has a number of although not in each caliber. Navy Arms sells five in one blanks but They https://strapweaponshop.com/product/triple-r-munitions-223-5-56-nato-blanks-100-rounds/