The rifle reads as a far more obvious symbol of adulthood to Matt: Matt has thus far been using a subpar rifle, while his father has used the better one. Still, Matt’s father seems to worry some about Matt’s maturity. Warning Matt to not waste powder shooting at everything makes it seem like Matt might very well think it’s okay to shoot for fun. However, Matt’s careful practice shot suggests that while Matt will have to practice to become proficient with this gun, he’s perhaps more mature already than his father believes.