Lubrication and Rust Protection

When last we looked at it, your bore was totally clean but dry. Now, run one last clean patch with oil down it, chamber to muzzle, leaving a thin coat of oil inside. This is for protection against rust.

Indeed, to add one final touch of consistency—especially for police snipers— when you depart for the field or arrive on-scene during a call-out, run one more dry patch down the bore, both to remove any accumulated dust and ensure there's uniformity in your cold-bore (first) shot from the rifle.

To treat a bore with Smooth-Kote, begin with a clean, dry bore. Further degrease it with rubbing alcohol, running patches until they come clean. Put Smooth-Kote liquid on a patch, thoroughly coat the bore, and then allow it to dry for two hours. The manufacturer says this long-lasting, submicron coating of molybdenum disulfide will fill imperfections, making your bore so "slick" that future cleaning is dramatically easier, with less copper buildup. Though not quantified, usually there's some accuracy improvement as well. I don't think there's enough experience yet for firm guidance on this, but snipers who've served in Iraq tell me Smooth-Kote works great, although a few "old hands" chink the resulting reduction in fouling encourages riflemen not to clean their bores often enough.

To lubricate internal working surfaces, always use the minimum because it will attract dust like a magnet. Every mating, sliding surface needs lubrication.

For rust protection, wipe a thin layer of oil on all external metal surfaces, so thin that it does not feel wet to the touch. Or you can protect exterior surfaces with a moly-impregnated Tuf-Cloth, which dries in a few minutes.

Follow these procedures and your rifle won't merely operate trouble-free, it will also stay a tack-driver for 10,000 rounds.

Thin Magnet DriverSniper Dope Table
A Bullet Drop Compensator (BDC) allows for fast elevation adjustments but lacks the precision of target knobs.

Diavari V 6-24x50 T, offers a variety of seven BDC trajectories. You select the one that best fits your load., and Zeiss installs the corresponding cam. Though well-built, this BDC has limited sniper usefulness since its maximum range is only 300 meters.

The downside of all BDCs is that they incorporate an "average of averages" for tracing a bullet's trajectory. The "dope" that created it is no different than the average ballistic table, which assumes a 24-inch barrel, a scope reticle 1 1/2 inches above the bore, sea-level elevation, and 59°F temperature. It's far more accurate than old-fashioned "Tennessee elevation," or holdover, when you just held high to compensate for distance, but it's not as accurate as a Finely adjusted target knob. A U.S. Army or Marine sniper—each of whom employs a BDC in his scopes—knows to test that BDC at an assortment of distances and carefully record (and apply) any discovered variations.

But that fine-tuning itself cannot be as meticulous as a target knob because the Army's M3A BDC uses I MOA elevation increments. This means that if a sniper wants to raise his

The BDC on this Leupold Mark 4 M3 allows engagements from 100 to 1,000 meters or yards, with interchangeable compensators for assorted calibers, even custom made for specific loads.

Note: All listed scopes have 30mm tubes except the Kahles, with a 1" tube.

Thus, if you're outfitted with a fixed-power scope, 1 Ox is probably the lowest magnification required for long-range shooting, while it's still not so high that you're overly vulnerable for short-range engagements and lose low-light capabilities.

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Hunting Mastery Selected Tips

Hunting Mastery Selected Tips

Deer hunting is an interesting thing that reminds you of those golden old ages of 19th centuries, where a handsome hunk well equipped with all hunting material rides on horse searching for his target animal either for the purpose of displaying his masculine powers or for enticing and wooing his lady love.

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