Dumb Scope Mount Question

[Banjo]

Is it better to mount a scope as close to the barrel as possible as long as it does not touch? Is there much, if any barrel movement in the scope area? TIA

 

[abinok]

Yes, it is better.. kinda. It will get you into a better position in relation to the cheek piece, and it is a veeeeery slight advantage in terms of the adjustment needed to compensate for trajectory. There is minimal movement at the near end of the barrel. I have seen some dedicated 1K bench guns that had enough room to slide 3 pieces of paper between the objective and the barrel... but not 4. Thats about .020 or so.
And welcome to LRH!

 

[4ked Horn]

Mounting the scope low also increases the "duration of coincidence" or in other words, the length of time (and length of distance) that the bullets path approximates the line of sight.

This is handy when sighting your gun in for a "point blank range". This will only matter for about 200 to 300 yards or so depending on what size target you want to hit in this manner.

If you need I can explain what point blank range is. It is a very handy way to deal with aiming at closer targets.

This whole topic also relates to what makes optical (not laser) range finders work and also what limits their accuracy as the distance they are measuring increases.

Clear as mud? /ubbthreads/images/graemlins/confused.gif