Tried flamethrowers, regular flamethrower is good, but elf melter is useless for post-plantera/post-golem. It has less damage than terrablade (from projectiles only), also terrablade is easier to obtain (solar eclipse is much easier than frost moon), has better range, better piercieng and larger projectiles, so terrablade is better "ranged" weapon than elf melter. Not against idea of ranged weapon with short-range attack, but it should provide benefits in comparison with regular ranged weapons, or at least not be weaker than projectiles from melee weapon obtainable earlier in progression.
A Ranged build with Shroomite Armor does a fair bit more with Elf Melter than it does with Terra Blade, even at Melee range (landing hits with both the projectile and the sword). It does more than double the damage of just the projectile, and if stealthed, its doing around triple.
I'm not saying that a Melee build with Terra Blade isn't very strong, and adjustments are being made to that, but just equipping a Terra Blade on a Ranged build is not better than Elf Melter.