Re: how do u tell scope no good
I was always told a scope is bad if the lens is broken, the reticle is damaged or you cannot adjust the reticle. Everything else is usually corrected with an adjustment of some kind.
Have a question.
Did the scope run out of adjustment when you were trying to zero? Check that the front tube does indeed have clearance over the barrel. (you see a gap between the two) if it makes contact it will throw off your zero.
Do reset the scope to center as described above.
Are the rings mounted correctly?
Do you have a laser bore site?
If not this may help.
Is this rifle a bolt or semi auto action? If a bolt, remove the bolt and look through the barrel then look through the scope without moving the rifle and see if you are close to the Spot that the barrel is on. If not then the scope is either Mis-mounted or the rifle may not be true( plum or square) in relation to the base, screw holes, or dovetail mount and the barrel.
At this point look at the rings are they square to the barrel? To check take a ruler and lay it along side of the scope mount with the excess length pointing toward the muzzle. It should not angle in or out but stay generally in a straight line. (the ruler must be straight and not bent on its own)
Verify that you have a slight gap between the top and bottom portions of the rings as should they not be tight on top of each over and touching this can throw off the zero
Repeat with the scope it should be centered over the centerline of the barrels bore when looking from above
I know this all sounds like a lot of work but it should only take 20-30 minutes to verify
Lastly if your rings are two piece verify that they are orientated the same way. With the set screws facing the same side of the rifle. BTW is this rifle a 10/22? they are know to strip out the threads in the holes pre-drilled on the top of the rifle. Let us know what you find and to what direction the rounds were impacting in relation to zero when you were at the range and we can go from there
Last edited by Curlyjoe_99; 01-26-2012 at 06:23 PM..
Reason: fix some typos and added the portion on 10/22