Shoot BR Cases from your PPC Action with Rebated Rims

Butch Lambert of ShadeTree Engineering provided this tip. Butch notes that many 6 PPC benchrest group shooters also enjoy shooting in score matches. But to be really competitive in the BR for score game, that means shooting a 30BR, which has a wider, .308-class rim (0.4728″ diameter). Likewise, if you want to compete in 600-yard registered BR events or in varmint matches, you probably want to run a bigger case, such as the 6BR, 6mm Dasher, or 6-6.5×47. Those cartridges also have the larger 0.4728″ rims.

To convert a PPC-boltface action to shoot the bigger cases you can spend a ton of money and buy a new bolt. That can cost hundreds of dollars. The simpler solution is to turn down the diameter of the larger cases on a lathe. Butch explains: “We’ve seen plenty of interest in rebating case rims. This lets you shoot a 30BR in score matches using your PPC action. All you need is a new barrel. This saves buying another bolt, receiver, or rifle if you have a PPC boltface. Anyone who has access to a lathe can do this job pretty easily. Yesterday I turned 150 case in about an hour.” Below are photos of a rebated 6BR case, along with the lathe form tool Butch uses to rebate the case rims.

Upgraded PACT Chronograph with Infrared on Sale

Now that PACT offers an infrared Skyscreen option with its chronographs, we think the PACT is worthy of serious consideration. And now PACT is selling the PACT Professional XP chronograph (with IR kit) for $229.95, as a “Christmas Special”. That’s $40 off normal pricing and PACT throws in a FREE tripod to sweeten the deal.

Compared to other chronographs, the XP with infrared offers some very nice features:

Built-in Printer. (Every chrono should have one.)

PC interface lets you upload data to your computer. (Serial cable standard, but you can easily buy a serial to USB for use with laptops.)

Built-in ballistic computer. (The chrono has a bullet BC database and uses the BC, with your velocity data, to compute windage and elevation. Cool eh?)

With Infrared screen option, the PACT can be used indoors and is far less sensitive to tricky outdoor lighting.

Chron display unit has a nice big read-out with easy-to-use controls.

We’ve heard many good things about the competitive CED chronograph with Infrared Screens. The CED also offers a computer interface, and the CED control unit is more compact than the PACT’s control center/printer. But we really like the printing capability of the PACT, and its built-in ballistic program (with bullet database) comes in very handy. Once you have your velocity and zero at 100 yards, the PACT will calculate your come-ups for other yardages. It can even give you windage corrections. With the PACT, once you know your muzzle velocity, you can immediately start shooting at all ranges–you don’t need to drive home to work out your come-ups on the PC, or carry around a PDA with Exbal installed.

In addition to the Pro XP chrono with IR Kit, PACT is now selling Pro XP with standard (visible light) emitters, for $199.95 as part of the “Christmas Special.” This $199.95 price also includes a free tripod. We definitely recommend spending the extra 30 bucks for infrared capability–it’s well worth it.