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April 15th, 2007

Eliseo Donates R5 Tubegun Kit for Auction

Gary Eliseo, builder of outstanding Tubegun kits for Cross the Course, Prone, and Highpower shooting, has generously donated an R5 Repeater Kit to help support this website. We will auction off this kit, with the high bidder to be announced the first week of May, 2007. The Competition Shooting Stuff R5 kit is set up to shoot the 6mmBR cartridge or similar family (22BR, 6 Dasher etc.). The kit comes complete with everything you need to build a gun except sights (or scope), trigger, barrel and action. The current retail price on this R5 Kit is $925.00. There is a long waiting list and the next production run won’t be available until August 2007, so this is a chance to get an R5 before the end of the summer. Click HERE for our illustrated feature article on the R5 Repeater. Click the video window below to watch Gary put an R5 through its paces in rapid fire:

The kit to be auctioned has a handsome silver finish, which Gary tells us is the most popular color. There is a minimum bid for the R5 Kit of $500.00. Submit your bids by email to mailbox@6mmBR.com. You MUST include your name, address, and phone number so we can confirm your bid. Note: Because this kit does NOT include an action, no FFL is required. You will, however, need a capable smith to chamber and fit the barrel.

Eliseo R5 Repeater Tube Gun Kit

The R5 kit comes complete with everything you need except front and rear sights, Rem 700 action, barrel, and trigger. Click Here for large photo. The kit is much more than a painted housing for action and barrel. For $875.00, Gary delivers the following components:

• Complete Stock in gray powder-coat color.

• Advanced 4-way adjustable Buttstock/buttplate Assembly.

• Extended Picatinny (Weaver-style) top rail.

• Adjustable Handstop with quick disconnect socket.

• Recoil Disc to replace factory recoil lug.

• Bolt-handle Extension Knob.

• Two 5-round CNC Magazines optimized for the 6mmBR cartridge.

• SLED for single-round loading.

• All screws, washers and other fasteners.

Because of export restrictions, the R5 kit will only be shipped within the 50 U.S. States. The winning bidder must comply with all applicable laws.

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April 7th, 2007

Annealing–Restoring Life to your Brass

When you look at a new piece of Lapua brass you’ll notice the neck and shoulder area is a darker color. That darker hue comes from the annealing process. You can do this yourself to extend the useful life of your brass. Click HERE to read our Annealing Guide and learn all about annealing methods. After many firings and reloading cycles, brass work-hardens, losing its resiliency or “springiness”. This will affect the consistency of neck tension, a very important factor in accuracy. By annealing your cases regularly you can extend their useful life. Champion 30BR shooter Joe Entrekin anneals his brass very often and his brass is still winning matches after 40+ firings. We normally recommend annealing when you notice the brass has stiffened signficantly, or after 7-8 firings. There are many different methods to anneal brass. You can anneal by hand, or use a machine. It’s a good idea to mark your necks with a temperature-sensitive laquer or Tempil stick so you don’t overheat the cases (which can ruin them). Unless you’re very skilled at manual annealing, the machines normally produce the most consistent results.

Annealing Video with Home-Built Carousel
Our Dutch friend Jim DeKort created this 2.5 minute video of his annealing machine in action, processing 6BR cases. This carousel unit, similar to Ken Light’s BC 1000, was designed and built by Jim’s father. Currently Jim leaves a gap between each shell to allow more “flame time” per case. But with a second torch he can have a case in each slot. The cartridges spin in their mounting holes while they are rotated clockwise by the shell wheel. Right-Click on Screenshot and “Save As” to download 2.8 megabyte Windows Media video. If you have the video plug-in, you can left-click to watch the video.

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March 11th, 2007

Rimfire Run-out: Shocking Test Results

Too often we rely on luck and “voodoo” to pick the best rimfire ammo. Shooters resort to testing batch after batch of ammo in hopes of finding the “holy grail”. What we’ve learned, in testing a 17 Mach 2, is that some of the accuracy issues with rimfire ammo CAN be quantified, and the “mystery flyers” can be explained. Using a Nielson Brothers Concentricity Gauge, we tested lots of 17 Mach 2 ammo from Eley and CCI. Most of the rounds had run-out of .002″ or .003″. However, we found some rounds had run-out as high as .009″ (See video). That’s shocking. A cartridge with .009″ run-out is a guaranteed flyer that will kill your group. Interestingly, when cartridge run-out was .004″ or higher, you could clearly see the bullet tip was way off-axis–confirming the results of the gauge. Using the Nielson Gauge we could quickly sort bullets in .001″ increments. For match purposes, you should cull anything worse than .003″ run-out. By sorting for .0015″ run-out or less, we were able to reduce our average group size by 30%. More importantly, we eliminated most of the unexplained fliers that were landing well outside the main group. The Nielson Gauge works for both 17 Mach 2 and 22LR. And, with different inserts, you can measure 17 HMR and 22 magnum rounds.

Click to Watch Rimfire Run-out Test Movie (1 mb .wmv file):