Lapua, maker of premium brass, bullets, and loaded ammo, has released a new, state-of-the-art Ballistics program that runs on smartphones and mobile devices. The all-new Lapua Ballistics Mobile App is the first mobile ballistics app utilizing the 6DOF calculation model. 6DOF refers to “Six Degrees of Freedom”, referring to the multiple variables the software calculates. As explained below, a 6DOF solver can account for 3 components of movement PLUS 3 components of rotation. Of course, as with other ballistics software, the Lapua Mobile App looks at Bullet BC, velocity, and cross-wind effects. This software can also account for subtle, extreme long range factors such as the Coriolis Effect.
Notably, the new Lapua Ballistics App includes a library of up-to-date bullet profiles based on extensive field tests with Doppler Radar. Having an ultra-sophisticated 6DOF solver combined with Doppler Radar data makes the Lapua Mobile App one of the most accurate ballistics Apps on the market. Lapua Ballistics offers the latest, Doppler-proven Lapua cartridge and bullet data for you to combine with your firearm and local weather information. The App also includes the option to define custom bullets.
The Lapua Ballistics App is available for Android and iOS smart phones and mobile devices free of charge. For more info, visit www.lapua.com/lapuaballisticsapp.
6DOF, the most accurate calculation method. Lapua cartridge / bullet information. Distance, wind speed and angle. outputs numerical, reticle, table and graph views, metric and imperial values. Set Point Blank-range to different sight-in distances and impact windows. Define custom bullets ( BC G1 or G7 and Siacci method), Pre-set max 4 powder temperature.Sight-in-POI, Coriolis calculation
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There is a new tactical action from Canada with some very interesting features. The innovative U300 Bolt Action from Ultimatum Precision features a Rem 700 footprint and three-lug bolt with 60° bolt lift (like a Barnard). The floating bolt head is quickly removable, so you can swap to a different rim size in a few minutes. Another interesting feature is a special “Battery Safety”. The firing pin can only protrude from the bolt face if the lugs are locked and in battery. This ensures that if the bolt head is not properly installed, the rifle does not fire.
The black Cerakoted U300 action is strong and tough — the 4340 steel is hard-nitrided for surface durability. The action-maker says the hard nitride and Cerakote coatings improve wear resistance, corrosion resistance, chemical resistance, and hardness. The U300 action fits AICS-compatible detachable box magazines.
Designed for Savage-type Barrel Nuts
The Ultimatum U300 system was design to accept a barrel nut so “pre-fit” barrels (configured for the U300 bolt) can be easily installed (or swapped) by the owner with no gunsmithing required. The U300 uses standard 1-1/16″ x 16 Remington 700 tenon threads, so it can fit pre-chambered barrels with Remington-style threading. NOTE: Barrels headspaced properly by a smith can also be mounted conventionally without a nut. The user can choose the system he prefers.
Ultimatum U300 Action features:
· Removable Floating 3-Lug Bolt Head
· 5/16″ Integrated Recoil Lug
· Battery Safety
· 20 MOA Picatinny rail, secured with six #8-40 bolts and two pins
· 4340 Steel with Hard Nitride Finish and Cerakote.
· Compatible with AICS-style magazines
Ultimatum Precision has started shipping the first U300 short actions. Suggested MSRP starts at $998.00 U.S. Dollars. The action-maker plans to release both a long action model and a .338-specific model later this year. Ultimatum Precision is located in Abbotsford, BC, Canada, with a subsidiary in Washington state, USA. For more info, visit www.UltimatumPrecision.com.
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Forum member Danny Reever and this Editor recently discussed how novice reloaders can struggle with the fine points of reloading, making errors in seating depth, bushing choice, or sizing their cases. We agreed that a good resource covering more than “Reloading Basics” is sorely needed. Danny reminded me that Glen Zediker’s excellent Handloading for Competition book has been available since 2002. Danny says this may still be the best guide in print for those getting started in precision reloading, though the book is not without flaws.
Danny observed: “I consider this still the best book out there on the subject. I’ve bought a lot of other books only to be sorely disappointed after spending $30-$40 of my hard-earned cash. This book is not one of those! I’ve read and re-read Zediker’s treatise at least four times and refer to it often for advice while reloading. My number one suggestion for those who buy the book is to sit down with a highlighter and read it cover to cover. It’s well-written with a bit of humor and it is not boring.”
Extremely comprehensive, Zediker’s book covers nearly all of the key factors involved in accurate reloading: case sorting, brass prep, load development, neck-sizing, full-length sizing, bushing selection/use, tool selection, priming, powder measurement, and bullet seating. The book also explains how to test and evaluate your ammo, and how to monitor and interpret pressure signs.
There are many “must-read” sections in Zediker’s book, according to Danny: “The section beginning on page 161 dealing with concentricity (and how to achieve it) is excellent. Likewise the Load Limits section discussing pressures offers very valuable advice and info. You should also read Zediker’s commentaries about load testing, powders (burn characterics etc.), and the effects of temperature.”
Zediker has conveniently provided a detailed summary of his book on the web, complete with table of contents, sample pages (PDF format), and dozens of illustrations. Shown above is just one small section that covers ejectors.
Overall, we recommend Glen Zediker’s Handloading for Competition, though the book definitely could use some updating. Danny says: “Plunk down the [money] and buy this book, you won’t be sorry.” Zediker’s book is available from Amazon.com ($30.25), Sinclair Int’l ($28.99), and Zediker Publishing ($34.95).
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Forum member Danny Reever and this Editor recently discussed how novice reloaders can struggle with the fine points of reloading, making errors in seating depth, bushing choice, or sizing their cases. We agreed that a good resource covering more than “Reloading Basics” is sorely needed. Danny reminded me that Glen Zediker’s excellent 
