These are brilliant to methodically tune a handload on one durable target, yet pricey!
https://www.boxtobenchprecision.com/
Instructions--> https://www.boxtobenchprecision.com/target-instructions-2/
Article--> http://www.longrangehunting.com/articles/box2bench-targets-right-idea-right-time.1166/
https://www.boxtobenchprecision.com/
Instructions--> https://www.boxtobenchprecision.com/target-instructions-2/
Article--> http://www.longrangehunting.com/articles/box2bench-targets-right-idea-right-time.1166/