paralax

[fatbloke]

hi all. im the proud new owner of a 10x40 bushnell elite 3200 scope,very good optics but does it need to be re-paralaxed? if so is it a diy job or does it need to be sent away?
any help would be greatly apreciated fb

[theboymike]

Not too familiar with this particular scope, but as a rule:

Most scopes are intended for firearms use, and are hence parallaxed at 100yds.

Most non P/A scopes can have their parallax adjusted by unscrewing the trim / locking ring on the objective (front) lens to expose the objective lens housing. This can then be rotated (usually using the back of a hacksaw blade across two cut outs in the front of the housing) to set the desired parallax.

I find the best way to set PX is to lay the rifle on it's side on a solid bench, pointing at a target at your desired PX range.
Crouch down behind it with your eye 2-4" from the scope and look through it at the target.
Move your head up and down within the extremes of still being able to see through the scope - if the PX is off at that range the crosshairs will move in relation to the target as you move your head.
Keep turning the objective bell (initially about a quarter of a turn at a time) and re-checking until the crosshairs no longer move in relation to the target, or you've found the point where they move the least.

Screw the trim / locking ring back on, job done

[Gwylan]

It's easy, just undo the front ring, you might need a strap wrench, or you can use a belt and pliers instead, (don't let your trousers fall down..!)
There will be a small gap, which you can fill with an O-ring, or cover with a Butler Creek.

Gus