A3 rear sight base index marks

[milboltnut]

My A3 hasn't been rebarreled. The barrel date coincides with the serial number per JB web site.

The sight base index mark is off to the right of the receiver index mark.

The barrel and receiver index marks are dead on....the frontsight is 90 degrees from the extractor cut out.

The rifle shoots fine as far as I can tell. Off to the right a bit with the windage set at zero center mark, with any loads I shoot, handloads and surplus ammo.

Any particular reason the sight base is off to the right? It should shoot off to the left with the base off to the right?

[JimF]

Sounds to me like, for whatever reason, the rear sight was replaced.

[milboltnut]

Ok... just thought of something. When they zeroed the rifle they allowed the windage adjustment to sit in the middle and adjusted the base to allow maximum windage left and right. Kinda like a scope with a redfeild rear windage adjustment to allow the scope to be in the middle for windage.

[John Beard]

If the rear sight base is off to the right with respect to the witness mark, then the rifle will shoot to the right when set for zero windage.

J.B.

[milboltnut]

OOOOKIE doke ! Thanks again JB !