Hello, I'm back! The latest count on found Stevens 425 High Power rifles is only 184 guns. The lowest serial number is still 1021 and the highest is still 5594. I saw the post about a supposed 3-digit serial number, and I don't believe it! The rarest caliber appears to be .32 Rem and the most popular caliber is .30 Rem.
I've been at this research since 2008 and I still believe Brophy in his Marlin book is correct -- only 1000 (or fewer) Stevens 425 High Power rifles were manufactured.
Our list includes only two or three of the fancier 425 models, but I have found a very unusual Stevens 425. It is a 425-C saddle ring carbine, serial number 4076 in .35 Rem. Has anyone ever seen one?
Thanks everyone for all your help. Please continue to post your serial numbers and calibers.