14 is rigidly attached to base 10 and extends upwardly through the center of work table 12 a tool carriage 16 having a collar portion 18 is slideably mounted on post 14 and is urged upwardly by a compression spring 20 a conventional shotgun shell holder 22 which is slotted to receive the flange portion of the shell is affixed to the top of work table 12 for holding a reloaded shotgun shell 24 to be crimped and a crimper which includes a crimping sleeve 26 mounting bracket 28 and crimping die 30 fig3 is attached to tool carriage 16 above shotgun shell holder 22 crimping sleeve 26 has a generally cylindrical interior cavity 32 fig2 and 3 that is dimensioned to receive an uncrimped shotgun shell as shown in fig2 and has a contiguous cylindrical cavity 34 of smaller radius within its uppermost end in fig1 3 within which crimping die 30 is slideably mounted on rod 36 rod 36 extends through an opening 38 in the upper end of crimping sleeve 32 and is rigidly attached to tool carriage 16 by an adjustment nut 40 fig1 nut 40 is welded to tool carriage 16 and engages threads on rod 36 the position of crimping die 30 relative to tool carriage 16 can be adjusted by rotating the end of rod.