Hornady Lock-N-Load Conversion Kit. Simply insert one of these Hornady reloading tools into your RCBS Rock Chucker or other reloading press using a 1-1/4-12 thread and you re ready to take advantage of Hornady s Lock-N-Load technology with the Hornady Lock and Load Reloading Conversion Set. This reloading gear is the easiest way to get the most out of your competitive reloading press. Hornady has equipped the conversion kit with three die bushings and one conversion bushing. Expand the use of the reloading press when you use the Hornady Lock & Load Three Bushing Press Conversion Kit. Specifications for Hornady Lock-N-Load Conversion Kit: Manufacturer: Hornady Quantity: 1 Features of Hornady Lock-and-Load Conversion Kit w/ 3x Die Bushings: Easy way to expand the uses of your reloading press by Hornady Fits in RCBS Rock Chucker or other reloading presses that use a 1-1/4-12 thread Includes three die bushings and one conversion bushing Package Contents: Hornady Lock-N-Load Conversion Kit Hornady 44099: Lock-N-Load Conversion Kit