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March 16th, 2017

On the Level — Why You Need an Anti-Cant Device

anti-cant Device bubble level
This Holland Signature Series Level is reviewed in a SharpShootingUK Video.

Every serious shooter should have some kind of anti-cant device fitted to his or her rifle. When you tilt your rifle to one side or the other from shot to shot, even a little bit, this can alter your point of impact. Unless the direction and angle of tilt (or cant) is exactly the same for each shot, canting your rifle will open up your groups. And the effects of inconsistent cant* become more extreme the farther you shoot. READ MORE about rifle canting.

anti-cant Device bubble level
Jackson Hole Shooting Experience Instructional Video features scope-mounted Wheeler level.

In this video, Bryce Bergen of Long Range Shooters of Utah explains the key reasons you should fit a bubble level (anti-cant device, ACI) to your rifle. Bergen explains why inconsistent canting alters impact at long range. Bergen also offers tips on mounting your anti-cant device and working with bipods.

You don’t need to spend a lot of money on your bubble level. While there are fancy levels that cost more than $130.00, you can get a functional level for a tenth that cost. This Discovery scope level is CNC-machined to close tolerances for a good fit. It is available with three diameters to fit scopes with 1″, 30mm, or 34mm main tubes. The 1″ version is just $12.99 while the 30mm model is $13.95 and the large 34mm version is $15.95. This unit will do the job, and user reviews are very positive.

Optical Rifle Scope bubble level Discovery 30mm 1 inch 34mm Amazon

Scope-Mount Vs. Rail-Mounted Levels
Some “experts” recommend a scope-mounted bubble level rather than a rail-mounted level. The reason is that you can easily orient the position of a scope-mounted level. With the scope’s vertical cross-hair aligned with a plumb line, simply rotate the bubble level mount until the bubble is centered. It’s not so easy to adjust a rail-mounted level. If your rail is slightly off, or if the rail-mounted anti-cant device doesn’t sit perfectly horizontal when clamped on the rail, the bubble may not center in the view port.

anti-cant Device bubble level

Combo Anti-Cant + Angle Degree Indicator System
Flatline Ops sells a smart, scope-mounted leveling device with an optional vertical Strong Arm™ accessory for mounting an Angle-Degree-Indicator (ADI), which allows the shooter to make quick “true range” corrections for up-angle and down-angle shots.

anti-cant Device Flatline Ops

As a combined unit, the Accu/Level™ (fitted with Strong Arm and ADI) is a great set-up for the tactical shooter or long-range hunter. The bubble level rotates inward for protection, then kicks out to the left for easy visibility. The ADI is held in plain view on the left, under the bubble level. On LongRangeHunting.com, Jim See explains how the Accu/Level works in the field and how he employed the ACI during a hunt. CLICK HERE for Accu/Level™ Field Test.

We like the combined Level + ADI system that Flatline Ops has developed. But it is very expensive: The 30mm Accu/Level™ costs $139.99 and the Strong Arm (for ADI mounting) is $58.99. So you’ve got two hundred bucks invested before adding the $110.00 ADI. That’s a significant chunk of change that could be invested in your scope instead.

* By itself, canting the rifle does not hurt accuracy as long as the angle is exactly the same for every shot. Many sling/irons shooters, including David Tubb, cant their rifles. With scoped rifles, if you do prefer a cant, you should mount the scope so that the cross-hairs are plumb with your rifle at your preferred cant angle. You want that vertical cross-hair straight up and down always. The key is to never change the cant of your rifle from shot to shot.

Permalink - Videos, Gear Review, Optics 6 Comments »
March 16th, 2017

Invasion of the Minis — Compact Joystick Pedestal Rest from SEB

SEB Mini Bag carry pedestal front rest

The new SEB Mini joystick (coaxial) pedestal rest has been a huge success. Sebastian (“Seb”) Lambang’s SEBRests.com team is shipping these out worldwide to meet demand. The great thing about the Mini is that it folds up into a small package, making it much easier to transport than a conventional coaxial front rest such as the Seb NEO or Farley. Shown above is an army of Minis getting ready to conquer the world (well at least the world of shooting).

Even though the Mini is compact and relatively light weight, it is very stable and gives up very little in performance to a full-sized joystick front rest such as the SEB NEO. At the Berger SW Nationals last month, our Systems Admin Jay Christopherson used a SEB Mini. Jay finished Second in F-Open Class just one point behind winner David Gosnell, thereby proving the SEB Mini is “competition ready”.

Jay reports: “I’m glad I had the SEB Mini — it worked great and was much easier to transport and carry from position to position.” Here’s a short video of Jay using the SEB Mini to drill a string of Xs with his .284 Winchester F-Open rifle.

New Carry Bag for SEB Mini
With the success of the SEB Mini, Seb Lambang has already started designing some new accessories. Here is a prototype carry package, the Mini Transporter. You can see this compact bag will hold a Mini even with big F-Class feet attached. Seb says: “I’m experimenting with soft case for Mini rest… Your thoughts?” We think Seb should certainly offer this case for sale. Post your thoughts in the comment section below.

SEB Mini Bag carry pedestal front rest

SEB Mini with large disc feet attached still fits in bag.
SEB Mini Bag carry pedestal front rest

Permalink - Videos, Competition, Gear Review 5 Comments »
March 16th, 2017

Ringing Steel at 1500 Yards — With a Little Help from AB Kestrel

6.5 Creedmoor 1500 yards applied ballistics kestrelIt’s not easy to place a first shot on target at 1500 yards. You must measure the wind speed with precision, know your exact muzzle velocity, and have a sophisticated ballistics solver. In this short video from Ryansrangereport.com, the shooter manages a first-round hit on a steel silhouette at 1500 yards. He used a Kestrel 4500 NV Weather Meter with Applied Ballistics software to figure out the trajectory for his 6.5 Creedmoor rounds.

The Kestrel recorded a wind velocity, and the internal software calculated a solution of 17 Mils elevation (that’s 928 inches of drop) with 2.5 Mils windage. “Bang” — the shooter sends it, and 2.6 seconds later “Clang” he had a hit (flight time was 2.6 seconds). Bryan Litz observes: “This is the science of accuracy (in the form of an Applied Ballistics Kestrel) being put to good use at 1500 yards”.

Later in the video (1:05-1:15) the shooter places three rounds on steel at 1000 yards in just 10 seconds. The three shots all fall within 10″ or so — pretty impressive for rapid fire. The shooter reports: “[In my 6.5 Creedmoor] I’m using a 136gr Lapua Scenar L. This bullet has impressed me. It screams out of my barrel at 2940 fps and holds on all the way out to 1,500 yards.”

The rifle was built by Aaron Roberts of Roberts Precision Rifles (RPRifles.com). Chambered for the 6.5 Creedmoor, it features a Leupold Mark VI 3-18x44mm scope.

Roberts Precision Rifles
19515 Wied Rd. Suite D
Spring, Texas 77388
Phone: 281-651-5593
Email: rprifles @ gmail.com

Permalink - Videos, Bullets, Brass, Ammo 3 Comments »