Enough up for 1000 yards using a 3-9 power. Need base?

[tigrr]

Who sells a 20 MOA base for a Browning Bar Safari?

I am looking for input about a 3 - 9 power scopes with enough up to hold the crosshairs on the target at 1000 yards.
I am presently using a Leupold VXII 3-9X40 and Leupold rings and base and I run out of up at 800 yards. The browning 270 hit the 1000 yard 24 inch wide target 3 out of 8 times holding 15 feet above the target. The Browning 243 impacts are still a mystery.
The reason for this search is to compete in a hunting class rifle shoot out to 1000 yards. Wearing a 3-9 power scope.
Can I shim the 1 piece leupold base? If so how?
Any suggestions?

 

[cdnredneck_t3]

I would recommend against shimming it that far. Once you lift the rear ring up high enough you will have quite a bit of parallel offset causing pressure points on the scope and possibly damage. Get yourself a 20 MOA rail. They are built so that it keeps the rings aligned on an angle giving you some more elevation out of your scope. I think leupold makes 2 piece mounts with a 20 MOA cant.

 

[mjohn7]

As said - a 20 MOA rail will sovle the problem.

 

[Jordan Smith]

I use the Burris Sig. rings with anywhere from 20 to 40MOA of offset inserts between the 2 rings.

A Burris FFI Tactical 3-9x40 and a Zeiss Conquest 3-9x40 with Target turrets both get me quite a ways past 1000.

 

[Moike]

If you have a one piece base you can lay a piece of regular copper wire used for wiring homes perpendicular to the receiver under the rear most portion of the mount. This will lift the rear of the mount up enough to allow you to reach the 1000 yard mark with your scope. Devcon stainless steel putty can now be used to coat the underside of the mount giving you a permanent “wedge” shaped mount. Use shoe polish on the receiver of the rifle and liberally on all screws so the mount does not become permanently attached to the rifle. If you need longer screws for the mounts try Brownells.com Been using this system for years and it works great!

 

[tigrr]

I was referred to Leopold's site and came across this:

Elevation issues can be resolved by shimming (we will send shims free of charge if you would like). If more up adjustment is required, the rear of the base needs to be shimmed between the receiver and the base. If you need more down adjustment, the front base needs to be shimmed. In making this adjustment it should be noted each 0.001" thickness of shim equates to approximately 1-MOA (1 inch at 100 yards) correction. Shimming does not induce stress on the scope, but typically reduces stress by properly leveling the scope to be parallel with the receiver.

I searched for a 20 MOA rail, compatible with my rings, no luck. Looked into other options and I would have to switch out the rail and the rings.
So as a last resort, I cut a 10 thou brass shim and it’s under the rear of the base. I gained two complete revolutions at 100 yards on the elevation dial!! Going out Friday and see what difference it made(Didn't work!!). Still need to hold over. I need to load some target ammo. 135grain Sierra Matchkings in a 270 Browning Bar!
Thanks for the tips

 

[zimbu]

I was referred to Leopold's site and came across this:

Shimming does not induce stress on the scope, but typically reduces stress by properly leveling the scope to be parallel with the receiver.

Unless you have the wrong rings on your receiver or have rings of very poor quality so that there is a misalignment of the rings, shimming will not reduce stress. The reason shimming has been mentioned is it can raise the back of the scope with relation to the receiver so that the scope and receiver are not parallel. Unfortunately doing so will misalign the bores of the rings and could damage your scope if the misalignment is bad enough.

Try the 20MOA rail or maybe one of these?http://www.vortexoptics.com/product/vortex-diamondback-3-9x40-riflescope-v-plex-reticle

Not an AO scope but at 1000 yd I don't think parallax will be much of an issue. 70MOA adjustment range.

 

[tigrr]

Who sells a 20 MOA rail for a browning Bar Safari? Its wearing a Burris 1 piece with a windage ajustment and I think Leupold rings. Will I have to buy new rings as well?