Scope crosshair won't adjust
Rfr...@gmail.com
sights at a distant object and found that adjusting the vertical knob
does not move the horizontal crosshair. I've tried both up and down,
and it just doesn't move. (The left-right crosshairs move OK.) Lots
of turens in both directions, tapped the turret, no effect.
Suggestions?
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zxcvbob
# On Sep 20, 5:33 pm, Rfra...@gmail.com wrote: # I changed mounts,
# mounted my rifle in a sight vice, aimed the iron # sights at a
# distant object and found that adjusting the vertical knob # does not
# move the horizontal crosshair. I've tried both up and down, # and it
# just doesn't move. (The left-right crosshairs move OK.) Lots # of
# turens in both directions, tapped the turret, no effect. #
# Suggestions? #
#
# I was taught that when you change the point of aim on a scope, you
# need to apply a "tonk".
#
# To apply a "tonk" you need a rubber gripped, long shank screw driver.
# Grip the srew driver loosely between your thumb and forefinger and
# "tonk" (hit) the body tube of the scope just ahead of the turrets
# with the rubber padded handle. Once on top and once on the side.
#
# The force of the "tonk" should be about the force of the screw driver
# falling from 1 foot, handle side down. (No where near hard enough
# to dent the scope or move/hurt the mounts, but enough for a
# significant low/midrange shock.)
#
# Otherwise, a scope that won't change point of aim is just plain
# useless, unless it has a lifetime warranty....
#
# Trumpet
I have a new Leupold VX-I that I bought last winter and the point-of-aim
drifts all over the place. At first it had the same problem where he
top knob didn't do anything. I screwed it a full turn to the left and
then to the right and it finally started moving. Maybe I thumped it
with my finger; I don't remember. But then when I got it adjusted, I
would fire it and I could see the crosshairs get fuzzy then come back in
focus. And the next shot would be several inches off (at 50 feet.) I
tried it at that distance with iron sights to make sure it wasn't me or
the gun or the ammo and I put all the bullets in a dime-sized hole.
The gun is just a .357 carbine, and I was shooting 125 grain bullets and
not maximum loads.
I only tried once to sight it in; I need to try it again just to make
sure, and then sell the POS. Since it's a Leupold and because of the
warranty, I should be able to get what I paid for it in spite of the
problem. (of course I'll disclose the problem to the buyer)
Bob
oldpink
[...]
# I have a new Leupold VX-I that I bought last winter and the point-of-aim
# drifts all over the place. At first it had the same problem where he
# top knob didn't do anything. I screwed it a full turn to the left and
# then to the right and it finally started moving. Maybe I thumped it
# with my finger; I don't remember. But then when I got it adjusted, I
# would fire it and I could see the crosshairs get fuzzy then come back in
# focus. And the next shot would be several inches off (at 50 feet.) I
# tried it at that distance with iron sights to make sure it wasn't me or
# the gun or the ammo and I put all the bullets in a dime-sized hole.
Ewww
# The gun is just a .357 carbine, and I was shooting 125 grain bullets and
# not maximum loads.
Yeah, no recoil issues there.
The recoil should be only slightly more than .22 rimfire.
Probably a Marlin 1894C, right?
# I only tried once to sight it in; I need to try it again just to make
# sure, and then sell the POS. Since it's a Leupold and because of the
# warranty, I should be able to get what I paid for it in spite of the
# problem. (of course I'll disclose the problem to the buyer)
Yes, DEFINITELY contact Leupold customer support.
Leupold is very proud of their scopes, as evidenced by the high prices,
and their warranty service is renowned for its responsiveness.
They will make it right, I have all the confidence.
Keep us in touch with how it goes.
--
And what exactly is a joke?
.
oldpink
[...]
# I have a new Leupold VX-I that I bought last winter and the point-of-aim
# drifts all over the place. At first it had the same problem where he
# top knob didn't do anything. I screwed it a full turn to the left and
# then to the right and it finally started moving. Maybe I thumped it
# with my finger; I don't remember. But then when I got it adjusted, I
# would fire it and I could see the crosshairs get fuzzy then come back in
# focus. And the next shot would be several inches off (at 50 feet.) I
# tried it at that distance with iron sights to make sure it wasn't me or
# the gun or the ammo and I put all the bullets in a dime-sized hole.
Oh, one other thing I just thought of, that is if you haven't already,
is to double check out your mounts, rings, and all the attendant screws.
Degrease all mating surfaces and screws, then apply the removable blue
Loc-Tite.
A loose mount or ring would also cause the problems you cite.
[...]
--
And what exactly is a joke?
.
zxcvbob
# zxcvbob wrote:
# [...]
# # I have a new Leupold VX-I that I bought last winter and the point-of-aim
# # drifts all over the place. At first it had the same problem where he
# # top knob didn't do anything. I screwed it a full turn to the left and
# # then to the right and it finally started moving. Maybe I thumped it
# # with my finger; I don't remember. But then when I got it adjusted, I
# # would fire it and I could see the crosshairs get fuzzy then come back in
# # focus. And the next shot would be several inches off (at 50 feet.) I
# # tried it at that distance with iron sights to make sure it wasn't me or
# # the gun or the ammo and I put all the bullets in a dime-sized hole.
#
# Oh, one other thing I just thought of, that is if you haven't already,
# is to double check out your mounts, rings, and all the attendant screws.
# Degrease all mating surfaces and screws, then apply the removable blue
# Loc-Tite.
# A loose mount or ring would also cause the problems you cite.
# [...]
Thanks. I had the scope mounted and bore-sighted at Cabela's and I
assumed they did it right. I haven't checked anything.
Also, these are see-thru mounts, so the scope is mounted pretty high.
And I've never used a scope before (I have used a red dot sight on a
target pistol.) Could I be doing something wrong enough to cause this
problem? Another shooter at the range was helping me try to adjust it
and he didn't notice anything.
Bob
oldpink
[...]
# # Oh, one other thing I just thought of, that is if you haven't already,
# # Degrease all mating surfaces and screws, then apply the removable blue
# # Loc-Tite.
# # A loose mount or ring would also cause the problems you cite.
# # [...]
#
#
# Thanks. I had the scope mounted and bore-sighted at Cabela's and I
# assumed they did it right. I haven't checked anything.
Well, I am quite sure that Cabela's does good work, but I would take
NOTHING for granted.
# Also, these are see-thru mounts, so the scope is mounted pretty high.
Well, I have to say that see-thru mounts are seriously flawed.
They put the scope up considerably higher, and scopes should sit as low
as the objective bell will allow.
Also, see-thru mounts cannot be as rigid as solid mounts, such as a set
of Weavers or one of the Leupold clones made by Leupold, Burris,
Millett, and B-Square.
Were it my rifle, I would lose the see-thru rings and replace them with
lower, stronger rings, and that would be dictated by exactly what bases
you are using.
Weaver bases would make that a foregone conclusion.
If you are insistent on being able to see your iron sights, then by all
means keep them, but I would REALLY check things out, and I would STILL
degrease and Loc-Tite everything.
One other thing to consider is that, if the mounts are adjustable, that
the adjustment screws also might be loose.
As I was saying, leave NOTHING to chance.
# And I've never used a scope before (I have used a red dot sight on a
# target pistol.) Could I be doing something wrong enough to cause this
# problem? Another shooter at the range was helping me try to adjust it
# and he didn't notice anything.
Another thing I thought of was to check your eyepiece focus, as that may
be part of the problem.
Also, if the eyepiece focus is okay, but the eyepiece bell lock ring is
loose, that will definitely cause a reticle to change focus as the
eyepiece shakes around.
I'm not saying that the scope itself is definitely not bad, but I know
how Leupold has a well deserved reputation for quality, and because it
would be a real shame for you to go through all the time, aggravation,
and expense (your warranty will not cover the shipping) to send it in if
it turns out to not be defective after all.
Finding, then fixing a mounting or focus problem would be far easier,
cheaper, and quicker.
Good luck, and keep us informed.
--
And what exactly is a joke?
.
wb
scope becomes nothing more then garbage. People seem to talk about the
clarity of the optics and the % of light transmission all the time, but
the thing I don't hear much about is repeatability of settings when one
goes from 100 yards to 600 yards and then tries to go back to 100 yards.
The same is true for making windage adjustments. This ability of the
mechanics of the crosshair adjustment to work and hold a zero over time
is really the most important factor to consider in a scope purchase. It
is why some scopes sell for $100.00 and others sell for ten times that
much.
You can try tapping on the scope to see of you can loosen up the
inside workings and get them to adjust again. But once a scope does
this, it is generally junk. It needs to be either tore down and fixed or
tossed. Bushnell, Tasco, Simmons and any Chinese scope (Leapers are the
worse!) will generally exhibit this problem after only a short time. But
I have seen Leupold, Nikon, and other more expensive scopes work fine
for years at about 2.5 times the cost of the previous mentioned scopes.
Although I had a Bushnell Banner that had a clearer sight picture then
my friends Leupold Variax III, the Variax III is still working fine
while my Bushnell started loosing it's zero with every shot. Toss that
scope unless it is still under warantee and get a better quality one
like a Leupold if you want to cure the problem. Nothing is more
frustrating then trying to shoot with funky optics. You'd be better off
just using your iron sights.
Make this check on any scope you buy or have. Use one of those bore
sighters that fits in the end of the barrel and has a part that sticks
up with a grid that you look at through the scope. Adjust the scope's
elevation turret at least one full turn up and then down. Then see if
the thing stops on the same grid. If not, the scope's mechanics are
garbage. Do this with the windage adjustment as well. If you turn 30
clicks left, then with 30 clicks right, the scope should again be
centered. If not, look elsewhere for your new scope. I have seen several
brand new scopes, right out of the box, not pass this simple
repeatability test of their windage and elevation adjusting turrets.
You can also get a lemmon in any brand. But, companies like Nikon and
Leupold will stand behind their stuff.
.
browningh...@yahoo.com
When it comes to optics you get what you pay for. Even Leupold is now
making bargain basement low priced junk scopes. The problem of the
cross hairs not moving is common on lower priced scopes and the person
often wastes more ammo sighting them in than it would have cost him
just to spend a little more money and buy a quality scope to begin
with.
Even higher quality scopes can sometimes freeze up inside or the leaf
spring fail to move inside the scope when the cross hairs are
adjusted. It was I believe Burris that came out with a scope that you
can manually push the adjustment inside the scope to adjust the cross
hairs.
The other problem is running out of adjustment as not all scopes have
the same amount of internal adjustment. This is most frustrating and
usually results in getting adjustable rings and mounts to move the
point of impact up or down through the mounts rather than through the
scope. One of the good ones no longer made was made by Maynard P.
Buehler that had elevation adjustments right in the mount itself.
On Sep 20, 8:33 pm, Rfra...@gmail.com wrote:
> ...
Herb Leong
zxcvbob <zxc...@charter.net> wrote:
#I have a new Leupold VX-I that I bought last winter and the point-of-aim
#drifts all over the place. At first it had the same problem where he
Call this number, 1-800-LEUPOLD (538-7653), or go this this website,
http://www.leupold.com/hunting-and-shooting/contact-us/service-support-u-s/
and ask them to fix it.
/herb