@FR0STO9 said "any regular bullet made of metal". Musket balls aren't made of metal. Luminite Bullets already pierce, which leaves Silver Bullets, Tungsten Bullets, and Chlorophyte Bullets, and the latter would be too strong if they could both pierce and home. I think that it would be fine if Silver and Tungsten Bullets had a chance to pierce, because then there'd be an option for dealing with groups of enemies before Meteor Shots become available.I don't know, seems too strong if any cheapo musket ball had the chance to pierce. It could have like 80% damage falloff or even 1 flat damage on pierce; then it's a neat visual touch and it doesn't meaningfully buff already strong weapons.
Sorry to Leinfors for not giving more details before he read this. I have updated everything now and I personally think that Dreadnautilius5000’s reply is what I originally thought of in my head.From a logical perspective, sure, there's nothing wrong with this.
But Ranged typically is already one of the most powerful classes for about 80% of the game, and a blanket buff to all guns like this is just not something that is needed. Ranged just doesn't need a global buff like this. And yeah, the balance changes are finished too, so there is that as well, but even if they weren't, I wouldn't be in favor of this change for the balance considerations.