After you've attached the Conetrol base to your gun:

1. Open only one ring box at a time, the sure-fire way to keep from mixing ring parts. At the factory, Conetrol projectionless rings are individually mounted and polished as an intact unit for a perfect fit.

2. Without opening the other ring box, use the halves of the first ring (one at the front of your scope, one at the back) to determine where the front and rear rings would have to be to fit into the Conetrol base.

3. Carefully holding one of the ring halves in place, get the second half from the other end of the scope, add the ring cap, and install this first ring on the scope tube. (See the instruction sheet in the ring box.)

After you've mounted your scope on your gun and have tightened the cone screws of the Conetrol mount:

1. Loosen both cone screws under the front ring, and back the two cone screws about halfway out. (With Limited or Custum rings, also loosen the two ring-stud screws at the base of each ring.)

2. With the heel of your hand, bump the loosened ring and scope in the direction of the reticle's cant. For example, if the reticle is leaning left, you would knock the ring to the left. (This should make the front ring turn on the scope tube).

3. Bump the ring several times if necessary, until you notice a gap under the right side of the ring, between it and the top of the Conetrol base. (The size of the gap will help you gauge how much correction has been made.)

1. Unscrew, about halfway, all four cone screws in the sides of the Conetrol base.

2. Lift the scope off.

3. Hold the sides of each ring together with a thumb and forefinger while prying the bottom of the ring apart with the blade of a screwdriver.

4. This will force the top of the ring together, releasing the cap, so the ring can be removed from the scope tube.

Every Conetrol projectionless ring is individually mounted and polished as an intact unit for a perfect fit. If you suspect your ring parts may be mixed, maybe these tips will help:

1. A number is stamped on the very bottom of one ring half only, not the other. If you have a ring with a number on both halves, or a ring with no numbers at all, those halves do not belong together. For 1" rings, the number 4 indicates a low ring (4/64"), 8 a medium ring (8/64"), and 12 a high ring (12/64"). For 30mm rings, 30 indicates low (3mm), 50 medium (5mm), and 70 high (7mm).

2. A cap-locating notch is ground at the top of one ring half and not the other. If you have a ring with a notch on both halves, or a ring with no notches at all, those halves do not belong together.

4. Each ring is bored before it is split. The interior boring marks are generally discernible and should continue across the splits from one ring half to the other at both top and bottom when the ring halves are held in position together. If the boring lines do not coincide, those halves do not belong together.

5. In the finishing process, the circular dovetail at the top of a pair of ring halves is relieved fore and aft with a hand grinder so the cap will go on. This is done in a single operation, with the top edges of the ring halves pushed together as if in position around a scope tube. If it is apparent that the halves of a split dovetail atop a set of ring halves held together were not ground at one and the same time, those ring halves do not belong together.

6. Circular machining marks are usually discernible at the top and/or bottom of each pair of ring halves, which may change slightly from one ring to another. If such machining marks are discernible at either the top or bottom of one half, the same pattern should be visible on the other. On the other hand, if the cut is very smooth at the top or bottom of one ring half, it should also be smooth on the other half. If such machining patterns do not match up, the ring halves do not belong together.

7. Once you have a pair of ring halves you know belong together, add the cap and check for a good fit. If the locating notches on the cap and ring-half are held together, the fit should be precise, with the small flats at the front and back edges of the cap lining up exactly with the front and back edges of the ring. If the cap overhangs even slightly at the front or back, or is not quite as wide as the ring, that cap does not belong with those ring halves.

8. Finally, if you think you've just about got all the parts of two separate rings sorted out, try this last test: switch caps. Sometimes a cap on one ring will seem just right and the cap on the other ring will look good enough, but switching caps will suddenly make everything just right. Then you know you're right!