I purchased the scope from US. After mounting to a Tikka super varmit I bore sighted it using a Bushnell Bore Sighter. I have been unable to get the elevation to 600 metres as it stops at 400 metres on the sighter. Can you assist please. Kind regards **** Letcford

Or did you really mean bussbnell ?
Bushnell Bore Sighter

Instructions for Bushnell Magnetic Bore Sighter eHow

shim the rear base.

You have not provided the model number of the laser bore.
Best to visit this site and look for the one you want.
http://www.ncstar.com/support/product-manual.html

install proper caliber pilot, install bore sighter big end towards the scope, tighten set screw on the machined part calber pilot. align holizontal line with the horizontal line on your scope. make your adjustments to zero your scope by clicking the up and down or right to left adjustments. it's really easy after you do it once.

You can buy a laser bore sight that looks like a bullet that shoots a laser out. You just load it like a bullet and then sightyour scope to match it at the proper yardage. If you can remove the action(like with a bolt action) then you could just sight down the barrel(with the rifle in a gun vise) and then adjust your scope to point at the same thing you see through the barrel.

This happens a lot during bore sighting, - no shock to the scope to jar the cross hairs. So take your screwdriver and use the handle - rap the scope or better just tap it. Not hard enough to bend/dent it but jar it so things can move if need to.

continue to adjust the wind-age. If your problem persists I would suggest turning both to a random point and re-start sighting the gun. If that does not fix the problem return the sight because this most likely means the wind-age is disconnected.

if it is verry tight back it off a little bit you dont want to break the seal.i have never been a big fan of the laser bore sighters.i have had a cpl and both were inaccurate.BSA makes a good bore sighter for 49 bucks.try a cpl shots with it and find out how far you are truely off.remember 1 click is 1/4 inch.in 100 yrds.in the army we had all the ammo we needed to sight our rifles in.but here in the real world with ammo prices so high a good bore sighter is the way to go.

Hello,
I had the same problem but was able to solve it by shimming the scope mounts with a thin piece of plastic. Put it under the rear to raise the sighting and under the front to lower. I still plan to buy my son a better scope.