Weaver J4

John in B.C.

John in B.C.

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I have an old 3/4' Weaver J4 scope marked 'Patented El Paso, Texas'.

It appears to be a long eye relief piece with an objective lens marked "Varmint Master R.A. Litschert, Winchester, Indiana"

I tried looking online but info is spotty. Does anyone know anything about these scopes.
 
"Long Eye Relief" (LER) would normally be used on a revolver or similar - eye relief circa 20 inches. An Intermediate Eye Relief (IER) scope commonly found as "Scout Mounted" - ahead of action of rifle - eye relief circa 10 or 11 inches. A normal 1" scope might have 2 1/2 to 4 inches of eye relief. I am sure some of the little rimfire scopes here are less than an inch eye-relief. If you have a "Long Eye Relief" modification, than it was altered to go on a handgun - used at full arm's length. The "eye relief" is a function of where the lenses used focus together and show the cross hair reticle - so it is very possible to swap out or re-position a lens to get "unusual" eye relief.
 
There used to be a "how to do" with pictures about how to measure eye relief in a scope. Lay it on a work bench or table - shine a flashlight into the Objective end - hold your hand or a playing card sized paper behind the Ocular lens - slide that back and forth until you get the smallest dot of light - measure from there to your eye-piece rim - that is your "eye-relief" distance - from old days - you can get it so precise that you can see the filament of the flashlight bulb in that "dot" (from when there were still "filaments" used in flashlights). In use, apparently that "dot" gets placed on back of your eye, I think - so actual eye-relief might be a bit less - unless the "dot" is focused on your eye's "lens" - so then even less reduction in actual "eye relief".
 
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