What is the correct procedure to shim a scope to get more elevation. I will be shooting a 30-06 mostly 3-5 hundred yards, but would like to reach a 1000 and still be able to have a 100 yard zero also. the scope is a leupold 3.5-10x 40 lr m3 is this posable or will i just have to use the mill dots to hold over at a 1000 yards.

also thikness of shim if any sugestions

[ 06-01-2002, 03:32: Message edited by: bowiler ]

bowiler: Call Leupold and ask for one of the technicians. I talked to one of their top tech. at Leupold and he even mailed me a couple of shims.

The only reason you should shim a scope base is to level it. If you shim to raise elevation, your scope will not sit level in the rings and will not be clamped properly. A properly leveled scope should have ample adjustment to suit your needs. If your scope does not have enough adjustment now it may not be level. To check, mount your bases and measure the distance from the top of the scope bases to the bottom of the receiver with a dial or electronic caliper. The two meaurements should be within .003 inch of each other. Shim one or the other base to bring it into tolerance.

I seem to remember reading (somewhere) that there is a tapered scope base out for longrange shooting. I spent a couple minutes looking for the site I had seen it on, with no luck, or I would have posted it here for you. Memory serves to tell me that it was by a specialty company, not one of the big names.

Some of scope mount makers now have bases that come with usually 20 moa of taper. I know Leupold, NightForce, and Davidsons.

bowiler.

Check out Burris scope mounts with plastic inserts. Burris offer offset inserts to get scopes level and true to the action. This will also be a good solution to stay on paiper at longer ranges. You will probably run out of elevation at about 6-700 y with your 30-06 with a standard scope mount.

The burris mounts are well made (steel) and very afordable. The tapered bases avalible at the market is quite expensive. I use Burris mounts with offset inserts on my long range benchrest guns and i�m happy with them.

Stefan.

It depends what type of scope mount or base you have. The leupold base can be shimmed with out binding the scope. To get more elevation shim the front of the base. that is between the base and the front ring of the action. Brownells has shim packs for most bases. I don't like to shim between the scope and rings. Good luck.

The Burris rings already mentioned are great. They are called Zee rings and are available from Brownells. The various inserts allow for tilting the scope in the rings in any direction, without putting a strain on the scope itself.

Thanks for the replies. decided to go with the shims from sinclare int. lapped the rings have roughly 45 to 50 moa up after bore sighted. hope that will get me there. thanks again for the replies.