"A realistic, high-caliber tank shell designed for modern armored warfare. The bullet should have a sharp, pointed steel tip for armor penetration, followed by a slightly wider cylindrical midsection with engraved serial numbers and military-style markings. The lower portion should feature a textured brass or copper driving band and a subtly tapered base for chamber fit. Include signs of light wear, minor scratches, and heat discoloration around the tip. The model should be properly scaled (~50 cm long), with a metallic, industrial texture and suitable for real-time rendering in Godot or Unity game engines."