The RCBS Shell Holder is ideal for nearly any single stage press. The shell holder keeps cases securely in place and in perfect alignment for your reloading needs. Nearly every RCBS Shell Holder can be used for multiple calibers . Ideal for nearly any single stage press Keeps cases securely in place and in perfect alignment Nearly every shell holder can be used for multiple cartridges Custom Shell Holders firmly hold your cases in perfect alignment with the cutter for precise results. This system allows for accurate and repeatable case trimming lengths and leaves the case mouths square to the body. Works with RCBS® Trim Pro® Manual and Power Case Trimmers.Fits the following calibers:.30 Carbine .32 Auto (7.65mm Automatic).