I can give a little info about the Packer's history. They were introduced at the 1996 SHOT Show. Only 150 were made in 454, 44 Mag, 357 Mag, and 50 AE. About 10 in 44 Mag, 6 in 50AE, 5 in 357 Mag, and the rest were 454. All were premier grade. Both FS and AS were made but most 454's were FS. Most were 3 inch like yours (but oterh lengths were also made) and included a knockout rod to knock the fired brass out of the cylinder. Holsters were optional and included a pouch to hold the rod. I only know of two 3 inch guns that were octagonal. All had PACKER on the right side of the barell, later guns had PACKER farther to the right. I have shot my 454's and 44 Mag's but since I don't reload can't address best loads, etc. They are great little guns--congradulations on having one.