Lee Precision, Inc. .58 Cal Mini-IMP Single-Cavity Mold, 0.575" 472 gr

Lee machines their mold blocks from aluminum, making them rust-resistant and highly durable. Aluminum molds heat up and cool down faster than iron or steel molds, allowing bullet casters to produce quality bullets after just a few casts. Additionally, aluminum blocks are one-third the weight of iron or steel molds, reducing fatigue during extended casting sessions. To ensure optimal performance, mold block halves are CNC-machined for exceptional roundness and precise size control. The listed weights are based on Lee's recommended alloy, but actual weight may vary depending on the specific alloy mixture used.