laughs in Allomancy
Stays silent with an aluminum sniper rifle
For more on this topic, check out the Powder Mage trilogy. Because why study at Hogwarts when you could be snorting lines of gunpowder?
Chapter two should be called the "SG-1 how to guide "
The web serial “Mother of Learning” plays with this quite nicely.
In the lore, there was a war called “the splintering”. Basically, war was building, and the big powers on the continent were training up wizards for war. This was expensive however, so the smaller nations invested into newly developed rifles. Now a wizard will tear a gunman to pieces. They only had so much mana to fight with however. When the war started, the wizards were torn apart by massed volley fire. Instead of the big nations swallowing up the small ones, they were rebuffed, with heavy losses. The various large nations splintered with internal stress, as they tried to retool on the fly.
spoiler
In the story, the main character also makes use of a gun. He acquires one on the black market. Later, he is overwhelmed by the bad guy. A hand gun, at the last moment, gives him the chance to run. It was easy to block, once you know, but no respectable wizard uses a gun!
My headcanon is that a world that has magic would’ve never discovered gunpowder.

