More practice Achievement in A Plague Tale: Innocence
Complete the aiming training
How to unlock More practice
During Chapter 1, upon returning to the de Rune estate after the forest section, turn right to find a servant who is shovelling. He will tell the protagonist, Amicia, that he has set up targets for her to practise with her sling. The shooting range is directly to the left. Interact with a bag of rocks on the ground to collect stones first, then use Amicia's sling to hit all six pots to complete the training to unlock this achievement. Do this before entering the estate to continue the story or the aiming training session will be missed.
Consult the following video if you have any trouble. All credit goes to its maker, Trophygamers.