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Author Topic: nikon monarch 3x9x40  (Read 529 times)

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Offline josebd

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nikon monarch 3x9x40
« on: January 21, 2005, 07:05:48 AM »
looking for some answers!put it on a howa 1500 .243,base,rings are tight,had it at one time 2 1/4" high at 100,i wanted it at 2",so i moved it down 1 click,which should have been 1/4,wel next two shot 3/4 high at the target?how did it jump that much?from 2 1/4 to 3/4?
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Offline Bart Solo

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nikon monarch 3x9x40
« Reply #1 on: January 21, 2005, 07:20:12 AM »
Did you fire more than two shots? It is kinda hard to conclude that the scope is to blame with a two shot group.  The problem could easily be with your aim or with your rest.  I would suggest you go back to the range and see if the situation is reversed if you go up one click.
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Offline josebd

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nikon monarch 3x9x40
« Reply #2 on: January 21, 2005, 08:30:40 AM »
yes i shot more than 2,off of a bench with sandbags,i can group this gun less than 1/2" at 100,its not me!
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Offline Bart Solo

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nikon monarch 3x9x40
« Reply #3 on: January 21, 2005, 10:20:56 AM »
Quote from: josebd
yes i shot more than 2,off of a bench with sandbags,i can group this gun less than 1/2" at 100,its not me!


Didn't think it was you, but I had to ask.  I take it you haven't reversed the setting to see if you go back to the original 2 1/4 inches?

Lets think this through logically.  You shot two groups.  One of them was 2 1/4 inches high at 100 yards.  The second was 3/4 inches high at 100 yards.  You say you can hold a group to 1/2 inch or less at 100 yards.  The only change was that you moved the scope one click down.  One click is supposed to be 1/4 of an inch at 100 yards.  Given your ability to hold your gun to within 1/2 inch that would mean that the greatest possible spread would be about 1 1/4 inches.  You are getting a spread of 1 1/2 inches.  The scope basis and rings are tight.  

If you can repeat the problem, I would suspect you have a problem with the scope.  That means a warranty claim.  

Go back to the range and try the following.  Fire a shot.  adjust the scope up 4 clicks.  Fire a second shot.  adjust the scope down 8 clicks and fire a third shot.  Adjust the scope up 4 clicks. Adjust the scope right 4 clicks and fire a shot.  Adjust the scope left 8 clicks and fire a shot.  You should then have a pattern that looks like a diamond with all your shots about 1 inch away from the center shot.  If you have that you probably don't have a scope problem.  If you don't get that shape you need to contact Nikon's warranty department.  The shape doesn't have to be exact but it should be close.
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Offline swecology

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Nikon Scopes
« Reply #4 on: January 22, 2005, 04:24:22 AM »
Jose,

I shoot the same scope on my Ruger MkII 25-06.  I will typically get a 3/4 to 1" group off of the bench with it.  

Whenever I have run into problems, where the group size suddenly goes haywire. it's always been a mounting and bedding issue.

Check your mounts to see if anything has loosened.  Check your bedding screws on the weapon also.  Last time it happened to me, the gunsmith who did a trigger job for me left all the bedding screws extremely loose.  These can back out on you also, periodically.  

If that doesn't solve it, and you still have trouble, give nikon USA a call.  

Matt 8)
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