Still with scope mount issues.


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GuyWithGun
August 9, 2014, 04:56 PM
Posted a thread several weeks back about a Rem 7600 I was having issues with shooting WAY low. Advice was to try new scope mounts, put one piece Leupold bases and standard rings. I then lapped them and remounted the same scope. Good news it shoots less low than before (about 3" at 50 yards), but no adjustment left on scope. Scope is a Leupold 2-7, new. Any ideas other than trying a new scope?

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Laphroaig
August 9, 2014, 06:11 PM
I'd make some shims from a soda can. I'd then put one on the top in the front ring, and another on the bottom of the rear ring.

Laphroaig

345 DeSoto
August 9, 2014, 07:05 PM
Laphroaig - Shouldn't those shim locations be reversed?...

rcmodel
August 9, 2014, 07:22 PM
No.

But you Do Not want to shim inside the rings anyway.

There is no extra room inside the rings for shims and they will pince the scope tube when tightened down.

Shim under the the rear of the base, or under the rear base only if it has two bases.

That will tilt the scope down on the receiver.
Which will raise the barrel in relation to it.
Which will raise POI with the same scope setting.

rc

smokey262
August 9, 2014, 07:22 PM
If it is indeed a one piece base, cut a shim from an aluminum can and place it under the rear two holes of the base

Laphroaig
August 9, 2014, 09:29 PM
I agree, under the rear of the base would probably be a better solution. But I had a similar issue with a 22 and I solved it with shims within the rings. I don't think I did any damage to my BSA scope :confused:

But then with a BSA scope you might not be able to tell :uhoh:

Laphroaig

smokey262
August 9, 2014, 09:35 PM
Heck, it may even make it better

greyling22
August 10, 2014, 09:38 AM
cheapest option is shinning the base. I had an issue with a rifle shooting low, and only 2 piece bases were available. I wound up getting the burris signiture rings and the pos-align offset shim kit. It allowed me to correct up to 30moa within the rings. I used all 30 and was pretty close to where I needed to be without adjusting the scope. The scope then had ample adjustment to get dialed in. It worked, but it was like 50 bucks for the rings and inserts.

GuyWithGun
August 10, 2014, 11:02 AM
"I wound up getting the burris signiture rings and the pos-align offset shim kit. It allowed me to correct up to 30moa within the rings. I used all 30 and was pretty close to where I needed to be without adjusting the scope. The scope then had ample adjustment to get dialed in. It worked, but it was like 50 bucks for the rings and inserts."

I've looked at those a couple of different times (was suggested on my last post), but I can't get over the fact those just look flimsy and like a field failure waiting to happen. Am I over thinking things?

smokey262
August 10, 2014, 11:11 AM
Yes, they are rock solid

Jim Watson
August 10, 2014, 12:45 PM
Brownells has scope base shim kits with different thicknesses.
But cans are cheaper.
I had a leaning tang sight on a Highwall that I windage zeroed with two pieces of Buffalo Rock Ginger Ale can under one side. It was hardly noticeable in use.

Sun Tzu warrior
August 10, 2014, 05:58 PM
Have you made sure the reticle is moving with adjustment?
I loaned out a leupold VXIII to a friend who over extended the adjustment and the reticle would no longer move. Leupold made the repairs, and certified the scope at no charge. (which I planned on having the friend pay for)
STW

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