Ran out of scope elevation adjustment

[black alder]

I have a Browning 1885 in 223 cal. which came with original Browning bases and rings. The rings are medium
The problem I am having is that when sighting in at 100 yds I have used the full elevation adjustment on the scope and am not where I want to be
Right now using full elevation I am just below center , I would like to be about 2" above center and not have to use full elevation on the scope
The scope is a Vortex Crossfire II 4x12X40 AO with 50 MOA adjustment on the vertical axis
I have heard that this is a fairly common problem
Any suggestions would be appreciated
Thanks

 

[relic38]

You could shim the back scope base to increase the elevation.

 

[Dogleg]

Burris insert rings with offset inserts. Or shim the rear base.

 

[Brutus]

I heard that a typical paper clip, placed under the rear of the scope base, gives one about 10 MOA upwards.
Of course the screws will still have to engage. lol

maybe

 

[relic38]

I used three pieces of aluminim pop can as shims. Worked like a charm.

 

[Bigfoot 870]

You could shim the back scope base to increase the elevation.

That's what I was thinkin'.

 

[p14shooter]

i have the same question. what do you have to be careful of when shimming though. I may need up to 20 moa (it is last minute and I am trying to rig something up until I can get something more permanant and does anyone really know how thick the shim should be to reach 20moa?

 

[ultimate_monkey]

well i can see there seems to be a lack od detail on some of the answers.. so i shall collaborate what others have said


1) burris rings w/ inserts
2) 1pc base with built in MOA
3)shim , this only workrs with 1pc base, and you MUST bed the rail to the action. or your just putting un needed stress into your rail / optcs
4) sell your scope and buy one with more internal elevation... 50MOA is peanuts compared to whats available

 

[ultimate_monkey]

i have the same question. what do you have to be careful of when shimming though. I may need up to 20 moa (it is last minute and I am trying to rig something up until I can get something more permanant and does anyone really know how thick the shim should be to reach 20moa?

1 MOA over a 6" rail = .00175"

.00175x 20 = .0349 or .035"


to figure it out 1MOA = 1.047" at 100 yards

1.047 / 300' = .00349 per foot


.00349 / 2 (two 6" sections per foot ) = ,001745 per 6"

 

[silverfoxdj]

Burris insert rings with offset inserts. Or shim the rear base.

This works well..

 

[p14shooter]

1 MOA over a 6" rail = .00175"

.00175x 20 = .0349 or .035"


to figure it out 1MOA = 1.047" at 100 yards

1.047 / 300' = .00349 per foot


.00349 / 2 (two 6" sections per foot ) = ,001745 per 6"

That makes complete sense. I should have been able to figure that out, and am slightly embarrassed that I needed help with it. Thanks

Paul

 

[Magellann]

Not so bad once you do the math.

 

[heavymetaljeff]

I used a cut up beer can folded 3 times as a shim under the rear ring, brought it almost to exact centre after being at the very bottom of adj at 100 yards on my buddy's mosin build

 

[mcgivor2]

I use a piece of velcro strap like a cable tie strap cut a piece and it will not scratch anything.

 

[Mush]

I used a cut up beer can folded 3 times as a shim under the rear ring, brought it almost to exact centre after being at the very bottom of adj at 100 yards on my buddy's mosin build

I have a big problem with that if you don't lap the ''sheet'' out of the rings after having shimmed. Think about it. Front ring angle versus rear.


Mush

Mush

 

[silverfoxdj]

I use a piece of velcro strap like a cable tie strap cut a piece and it will not scratch anything.

Would it not compress over time.

 

[heavymetaljeff]

I should be more clear, not between the ring and the scope but the bottom of the ring(under the cross bolt)and rail.


Note: I would not do this to a higher end set up, but with a cheaper scope and gun I think it'll be ok
I would lap it if I had decent money into glass