How many shots does Nathan Foster recommend for the initial break-in of a barrel?

Nathan Foster recommends 12 shots for the initial break-in of a barrel. This is considered an optimal number of shots to allow the barrel's interior to smooth out properly and to help with the settling of the bullet into the rifling. The break-in process is essential for enhancing accuracy and longevity by ensuring that any imperfections in the barrel are worn away and that the barrel begins to perform consistently.

Using fewer shots, such as 6, may not provide sufficient time for the barrel to adapt, while too many shots, such as 15 or 20, could lead to unnecessary wear or cleaning cycles. Therefore, the recommendation of 12 shots strikes a careful balance between effective barrel conditioning and avoiding excessive wear.