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Never Miss Again Part II: Battle Mount Your Scope

Estimated reading time: 7 minutes

I planted a small orchard of hardy fruit trees that I hope will stand up to my short growing season and winter temps that reach -25 or colder. Among them is a pie cherry that is on track to produce enough cherries for one pie, and maybe less.

As I walked past the orchard this week I saw a flock of starlings descend and land on the seven-foot-tall woven wire deer fence I built around the fruit trees. I hurried over to my gun safe and grabbed the first .22 I could reach, paused for a moment, checked the barrel for obstructions, and loaded four rounds into the magazine. I stepped around the corner of the shop, wrapped the leather sling around my elbow, and fired the rifle. The starling I aimed at fell dead to the ground where it was promptly mauled by my black lab.

80-Year-Old Rifle – Stevens Model 416

This is the first time I’ve ever shot that gun. It’s a Stevens Model 416 made in 1940. My grandfather, who was twice wounded in WWII, used it to train troops and himself how to shoot. It had likely not been fired in at least 60 years.

The rifle wore a zero power weaver scope with a 3/4″ diameter tube. It was passed down to me when I graduated college and I had never shot it out of a combination of respect for a man who died before I was born, and fear that I might not shoot it accurately enough to make him proud from the grave. I had little faith when I pressed the trigger that the rifle would still be sighted in, but shot as if it were. At 50 yards the reticle was thicker than the starling but the middle of the reticle is exactly where the bullet struck.

SEE MORE: Stevens Shotguns Adds the 555 Sporting Model to the Over/Under Lineup

Never Miss Again Part II: Battle Mount Your Scope
Notice the sling, elbow pad, and shooting glove. The precision small bore was a critical training tool for troops during the second world war.

Keeping Your Zero On A Hunt

These days I travel often and usually bring a rifle so I can hunt once I get to where I’m going. Most of us live in fear that the scope has been “bumped” and the gun isn’t shooting true anymore. Once on the hunt, we don’t want to be continuing to check zero because rifle shots tend not to attract deer and elk. Rifles can fall out of scabbards, hit rocks, get stepped on by horses, and meet all other possible forms of collision, sometimes without the owner knowing it has happened.

We finally draw down on the critter they’ve been hunting, press the trigger without disturbing the reticle, and miss. It has happened to almost all of us, and there is something easy we can do to prevent that failure.

Never Miss Again – Battle Mount It Up

This is how I set up a scope so it can receive the maximum reasonable amount of damage and maintain its zero.

Gun with Sig Sauer scope mounted

Due to the eye relief of this scope and the location of the two-piece base, I had to use this two-piece cantilever scope mount in an unorthodox way. However, your scope won’t care whether the cantilever points to the front or the rear so long as everything is mounted correctly.

What You’ll Probably Need

Never Miss Again Part II: Battle Mount Your Scope

I carry this small set of tools called “Fix it Sticks” which you can get for around $100. Most of the bits you need for field repair, a 1/2″ socket, a handy wrench, and an inch/pound torque head are included in this wallet-size kit. I’ll also be using a magnetic tray to keep scope ring screws from miraculously disappearing, as well as both red and blue thread locker

Hunter carefully removing the screws from his Sig Sauer scope

I start by removing the scope rings. This is pretty straightforward, just don’t lose the screws. The floor is lava.

Pay Attention Here

Never Miss Again Part II: Battle Mount Your Scope
I used to take ream with lapping compound and polish scope rings to make them perfectly straight and round in order to maximize the surface area contact between the inside of the rings and the scope tube. It was labor-intensive and messy. Today’s high-quality scope rings are machined better than they used to be, but they still aren’t perfect.
***Make sure you slide your bases as far forward in the rail sections as they will go before torquing them down. These use a 1/2″ lug and require 65 inches/lb of torque. One of the most common causes of losing a zero is not having the scope mounts slid forward before tightening. With the recoil of each shot, they will slide slightly forward which can cause your zero to shift if you do not do this. A body at rest tends to stay at rest.

Thread Locker Is What Holds Your Zero

Using thread locker to keep zero on a scope

Apply one drop of red thread locker to the bottom portion of each ring same to the inside of the top portion. This will fill in any voids and do the same job as scope lapping with the added benefit of chemically fixing the scope in place. You will still be able to get your scope out of these rings with a little force if you decide to move the optic to different rings in the future.

Never Miss Again Part II: Battle Mount Your Scope

I place a paper towel in my magnetic bowl with the screw heads facing down and apply one drop of blue thread locker to each screw. I evenly distribute that drop to the threads with my fingers before setting them back in the scope rings. Screws with blue thread locker are removable with hand tools, but this adhesive does an excellent job of resisting loosening caused by vibration. Whether in a pickup on a dirt road or the belly of an airplane, your rifle is going to experience long periods of vibration while in travel.

The Final Step For A Battle Mount

Sig Sauer scope firmly remounted on rifle

Lastly, I add the torque head to my wrench. I tighten the far side screws all the way down, back them off 1.5 turns, then tighten the near side until snug. This is a huge time saver. Check that the scope is level and the eye relief is correct for you throughout the power range of the optic and make any adjustments necessary.

Now I ensure the gaps between the rings are the same, front and rear, left and right, on the scope rings. I tighten them down in a star pattern, front left, back right, back left, front right until I have everything torqued to the prescribed amount, which in this case is 25 inch/lbs. Usually, the torque specs will be printed on the packaging your scope rings came in. Without a torque wrench, people tend to over-tighten their scopes, which can crush the tube and cause a variety of malfunctions. If the magnification ring is difficult to turn on your scope, your scope rings are likely too tight.

Conclusion

If you go through these steps you will have much better success at maintaining your zero as your rifle experiences the tough conditions we put them through. These bottles of thread locker cost me $9.99 at the hardware store. That’s some of the cheapest insurance you can buy, and a small price to pay on your road to never miss again.

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