ran out of elevation in my scope.now what

WW, I had a similar problem when I switched from my Sightron scope to my Burris Black Diamond... The Sightron was a 1" tube and mounted in Leupold rings and bases...

When I switched over to the Black Diamond (30mm tube), I couldn't get the elevation set for enough additional elevation and wound up ordering some Burris Signature rings with the +/-10 degree inserts...Those give me all the elevation I will ever need...
 
Do what Verminator2 says. Pop can shims are an easy fix and work fine. I had the same problem with a 22-250AI I had built. I couldn't find a Leupold 20MOA base locally and was leaving on a shoot in Idaho so I cut up some pop cans and shimmed the rear base and it worked great. I think I used three layers of aluminum. I found some 20MOA bases on that trip but didn't change out the shims for over a year. Hey, it worked so why mess with it. Eventually I started shooting more at 500 to 600 yards and I made the change.
 
If I need to shim, I only shim one piece bases, underneath the base. If you shim under a one piece base, or one of the rings, you put the two rings way out of alignment. You seriously stress the scope tube, not to mention getting major ring marks.
 
A couple bucks and a call to Sinclair. They have the shims you need already done. Much better than a pop can and only a couple dollars. But like Jack said, make sure you lap the rings after shimming
 
Originally Posted By: waterweasleI was liking the idea of using a plastic shim( if I ended up shimming) till I thought of your exact reasoning of plastic changing with heat, I think I'll get a 20 or 30 moa base and leave it at that, thanks guys

If your receiver is not "level" as described above, you will still be loading the 20 moa base with some unwanted strain if you don't shim between the receiver and base. I only use Leupold bases and scopes so when I called them with this problem, they send me a sack of shims. I've also seen them for sale at Brownells and used the pop can shims as well on my P-14. You want a straight and level surface to put your equipment on whether it is a scope base, pump or wifes stove
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I have shimmed the base ,the rings and have used shim from a tool and die shop and pop can .....the best I have used is from Brownells and has the holes pr edrilled for the mounting screws and is used under the Base not the rings as to not stress the scope ....JBPercision has given another source
for this. I have used pop can to get out to 1000 yards with
B&L elite 4200 6-24 with .308 and 155gr bullets.
 
Jack's recommendation to lap the rings is a good one, I always do it on any new mount. Just makes everything line up perfect. I don't think shimming a one piece mount adds any stress to a scope tube, 2 piece mounts yes, that's why it's doubly important to lap the rings on these.
 
I've used some of Glen's stuff, (Seekins Precision) it's top notch. I don't think you'll find that quality for that price anywhere else.
 
ok guys, just got off the phone with my cousin, and he has me totally confused now............. told him about my problem with the elevation, so let me make this clear


I ran outta adjustments to bring my POI up, so would the 20MOA base fix that, by raising the rear of the scope?
 


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