Quick answer: Aim shots at the point the crosshair targets (raycast from the camera through the crosshair, then fire from the muzzle toward that point), accounting for the muzzle offset.
Misaligned shots come from firing along the muzzle's forward instead of toward the crosshair's target. Aiming at the target point fixes it. Here is how.
How to fix it
1. Find the crosshair's target point
Raycast from the camera through the crosshair (screen center) into the world to find what the player is aiming at. That hit point is where the shot should land, not simply the muzzle's forward direction.
2. Fire from the muzzle toward the target
Spawn the projectile or trace from the muzzle, but aimed at the crosshair's target point rather than straight ahead. This corrects the parallax between the camera and the offset muzzle.
3. Handle close range
At very close range the muzzle offset matters most and can cause shots to miss what the crosshair covers. Test point-blank aim and adjust so the convergence is correct across distances.
Catching the ones you can't reproduce
The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.
Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.
This is where a tool like Bugnet earns its place. Its SDK captures every error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.
Reproduce it once with full context and the fix writes itself. The hunt is the expensive part.