You need a backstop for the rifle bullet if you miss the bullet can't be flying indiscriminately.
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This for example, if the shots missed you don't know where the bullet is going go but up in the trees it's going into the ground.
On the odd occasion a bullet can pass through the target and exit to kill again so even point blank needs a backstop.
I'll not go on about but I could, Scotland has millions of deer they're a recognised problem...if you kill one without jumping through hoops 1st you'll be in court in nano second collecting jail time, you can't even hunt a rabbit with your dog in Scotland, dudes got 4yrs for hare coursing...I wish I was kidding
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I like the American approach where people come first.