The "Fubuki"-class destroyers were far more capable than the previous "Mutsuki"-class in armament. The main battery consisted of six Type 3 127 mm 50 caliber naval guns, mounted in pairs in three weather-proof, splinter-proof, gas-tight gun turrets that were far ahead of their time. The Group I vessels could elevate to over 40 degrees, but from Group II (the last 14 vessels of the series), these guns were dual purpose guns that could be elevated to 70 degrees, making them the world's first destroyers with this ability. Ammunition was brought up on hoists from magazines located directly underneath each gun turret, which had a far greater rate of fire than those of other contemporary destroyers in which ammunition was typically manually loaded. However, the gun houses were not bullet-proof, and were thus actually still gun mounts, rather than proper turrets.