Mr. dan_oz, Thank you for a very informative answer. Your time is appreciated, I will be hunting for a copy of " Old Rifle Scopes". So it looked is like the J series for the 25-20 and 32-20, the rest will be used on the .22 rimfire. I have over time accumulated several K4s, my favorite being a cross and post. That one is going on my 23 D Hornet. Love the old stuff, not for wall hanging. Give them a good cleaning, work up a good load and have some fun. No one really ever called the
