I thought this 25 yard thing sounded familiar. Way towards the back of an old file I found an article from 1975. This was called "Simple Way To Sight In your Rifle" By Vin T Sparano. Outdoor Life Field Guide, November 1975.

Some friends of mine still swear by this. I would call it the lazy mans way to sight in a rifle. In a pinch, maybe but certainly not as a rule. If I can figure out how to scan this on my other computer and post it here I will.

For now, some snap shots of the "proof"!!

[Linked Image]
[Linked Image]