These cartridges are an excellent choice for indoor ranges, especially those with restrictions on magnetic ammunition. Each round features a 230 grain full metal jacket bullet, designed specifically for the .45 ACP and free from any steel content that could attract a magnet. While the ammunition may appear to have brass cases, they are actually brass-plated steel, offering a sleek appearance and resistance to tarnishing. This combination of steel core and brass plating provides cost-effective performance without compromising on quality.