Can you form a wildcat cartridge such as the 6mm Dasher or 6 BRA (BR Ackley) without expending primer, powders, and bullets? Absolutely. Using the hydro-forming method you can form improved cases in your workshop with no firing whatsoever, so there is no wear on your precious barrel.
How to Hydro-Form Cartridge Brass — Save Money and Barrel Life « Daily Bulletin
Honing System Eliminates a Gun Barrel Lapping Operation
High Pressure Hose Nozzle Heavy Duty, Brass Water Hose Nozzles for Garden Hoses, Adjustable Function
How to Hydro-Form Cartridge Brass — Save Money and Barrel Life « Daily Bulletin
Best Rollerball Pen: The Ultimate Writing Tool - Dayspring Pens
6mm Dasher « Daily Bulletin
Connection:1/2 Barb x 3/4 Female GHT Adapter for connecting hose or fittings of different types The garden tap hose connectors is precision
Joywayus 1/2 Barb x 3/4 Female GHT Thread Swivel Brass Garden Water Hose Pipe Connector Copper Fitting with Stainless Clamp House/Boat/Lawn/Power
Expand Cartridge Brass in Stages with Progressive Press « Daily
5 Advantages and Disadvantages of Rainwater Harvesting – Fresh Water Systems
June « 2023 « Daily Bulletin
224-24 Nosler - Wildcatting a Non-Existent Standardized Cartridge -The Firearm Blog
The Real Benefits of Barrel Fluting - Sniper Country
Hydro-forming « Daily Bulletin