I grew up with squirrel hunters who didn’t approve of wasting ammo.
I got my first training from WWII/Korea vets (USA and USMC) who also didn’t believe in wasting ammo. They also didn’t put up with excuses like “I don’t think this rifle is accurate enough...”
One classic response from a salty old Marine when I said there was something wrong with my rifle: “Son, there’s nothing wrong with that weapon that a new shooter won’t fix...”