Good news is that the little Ruger RSI in .223 shots nice little groups. Here is the bad news. I purchased a nice Leopold VX-Freedom AR 1.5x20 30 mm. 223 BDC with a FireDot MIL Ring Reticle. The instructions included do not appear to be for this particular scope. Here is the problem. I mounted this=had it on paper center and 4" high at 25 yards. Moved it to 100 yards and could not find paper. oved target back to 75 yards and it was shooting 13" high still on center. I bottomed out the adjustment and scope was STILL shooting 8" high at 75 yards. What am i doing wrong???? Is this thing only to be used on an AR15??? I thought that the AR designation meant that BDC was for .223. The top turret (for elevation) appears to be marked for bullet drop at various ranges. It this is s true, how do I adjust elevation??? The instructions are of no help

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Are you using the factory proprietary scope rings and built in mount ?

Can you remove the turret and make the adjustment with a coin and then replace the turret? I had a Colt style 4 power for AR mounting on a carry handle which required this action to zero.

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There are different height Ruger type rings for different type Rugers with the integral mount, IIRCC.

With Ruger mounts the tallest mount goes to the front, if you have them backwards that could cause your problem.

I just googled Ruger RSI.

This is just a wag, but here goes...........

It may be an optical illusion but I'll be danged if the scope ring mount area on the rear of the receiver looks lower than the front scope ring mount area.

If the rings are specifically for the RSI can you tell if one may be longer than the other?

Can you post a pic of your scope installed on the Ruger?

Edit...........looks like bulletslap is possibly on to the fix.

Caj, you were taking about bore sighting with a laser device a week or two ago. Maybe go back to that? You should be able to put the rifle in a vice of some sort, put the laser dot on a piece of paper 25 yards away, then adjust the sight until the cross hair is on the laser dot. After that point your bullets should be on the paper at 100 yards for final tweaking. Like people above eluded to, something might be amiss with the scope mounts, which would be apparent while doing the laser sighting at 25 yards.

I hate to suggest that Caj might not have the experience and expertise of an experienced gunsmith and he may not have been blessed with John Wayne’s genes.

A trip to an experienced gunsmith and $50.00 would likely solve his problems in about 15 minutes.

I'm old fashioned. Please forgive me if I'm being simplistic. Once you have the correct mounts and rings, bore sight it.
Can be as simple as shining a flashlight through the bore across a room. Put your crosshairs on the center.
If starting at close range with live ammo is not giving you enough room to adjust to zero, start shimming.
Good luck.

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Can you post a picture of the turrets?

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Thanks for the replies but I think I have found out the issue. FIrst of all, I've mounted scopes on many Rugers and if you get the rings reversed, there is no way you can put a scope in as the difference in height will not let the scope settle into the rings. The issue is with the scope I believe. Reading on the Leopold site it appears that there are pre designated stops on the elevation. If you need more you have to actually go in with an allen wrench to loosen the turning knob on he turret, turn it twice to give additional adjustment, retighten and then continue with zeroing. The most counter-intuitive thing I have ever seen

From the Leopold Web site
Running out of Elevation Down: Many Leupold scopes feature a zero-stop, or ZeroLock elevation dial that limits travel below the set zero of the firearm. This allows a rapid return to zero when dialing for bullet drop. If you encounter this mechanical limit in the downward direction while sighting in, loosen the dial set screws and turn the dial in the up direction 1-2 revolutions, then re-tighten the set screws. This will allow more dial travel in the down direction. Once the desired zero has been achieved loosen the set screws again, turn the dial until the zero stop or ZeroLock is engaged, then re-tighten the set screws.

Why they would not have that in the instructions is beyond me-wasted trip to the range

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I was sighting in my new Vortex Diamondback 4-12X scope and wasted a 38 dollar box of 6.5 Creedmor premium ammo and still wasn't close on the paper. I don't know what the heck the problem was but I went out and tried it again when I got some more ammo and got it sighted in perfectly with 6 or 7 shots. I've sighted in dozens of scopes over the last 50 years and never had a problem but I guess that was just a weird day.

I have a couple of scopes with the zero stop that has to be adjusted if you need to go lower than is already set. It's a pain in the butt, but it is kind of a nice feature once you get it set. What it allows you do, then, is add lots of elevation on the turret for a very long shot, then return it to your zero distance without having to count clicks. You just dial it down until it stops. This is especially useful if you add more than a full revolution of the turret in elevation as you don't have to keep track of both full revolutions and clicks. Of course, it won't be of much use if you never add more than a few clicks of elevation.

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That is a new one on me, I will file that away for future reference.

Good work figuring it out.