Composite Barrel Technology from Teludyne Tech Industries

Teludyne Tech Industries manufactures a unique sleeved barrel system which, Teludyne claims, offers significant advantages over conventional steel barrels. Teludyne’s StraightJacket® Barrel System features a three-part composite construction. In the center is a conventional, relatively thin-contour steel barrel. Around that is fitted a 1.25″-diameter metal sleeve (shroud) running from action to muzzle. In the “gap” between the inner steel barrel and the outer sleeve, Teludyne pumps in a proprietary media. This lightweight fill material provides rigidity with reduced weight, and it also helps to transfer heat away from the inner barrel tube. The outer sleeve can be aluminum, carbon steel, stainless steel, or titanium — as the customer specifies. (Titanium offers an impressive combination of strength, light weight, and corrosion resistance).

Teludyne claims that a composite StraightJacket barrel is as stiff as an equivalent-diameter large-contour steel barrel, but much lighter in weight. Teludyne declares: “By pressure-fitting our thin-walled machine tubing onto your barrel and then filling the void with our proprietary media creating a new monolithic structure, we retain the necessary flexibility but add the accuracy-enhancing rigidity.”

The StraightJacket system has been around for a few years, and the U.S. Special Operations Command (SOCOM) has been testing Teludyne barrel prototypes on a variety of platforms. There have been some promising tests that show improved accuracy over long strings of fire. This has been attributed to enhanced barrel cooling. Teludyne also claims StraightJacket barrels are more accurate than conventional barrels — at least conventional factory-grade barrels. That may be a stretch. However there is some hard evidence that a composite barrel can maintain good accuracy for more shots because the composite design sheds heat better.

You can read more about StraightJacket barrels in the GunsAmerica Blog. Testers for GunsAmerica saw improved accuracy in Savage and Sako .30-06 rifles which were retro-fitted with composite barrels. With StraightJacket barrels installed, Both rifles fired impressive 5-shot groups at 500 yards: “Target after target … came back on both rifles with both guns shooting into an inch to an inch and a half at 500 yards, and it didn’t seem to matter how many rounds of standard Hornady [ammo] we put through the guns. In total, [the tester] shot 160 rounds through two guns … most at 500 yards in light to no wind on a 90° Florida day.” If those results can be believed, Teludyne may be on to something. Groups in the 1.5″ range at 500 yards are competitive with quality benchrest rigs, yet the test rifles were “box-stock” except for the composite barrels.

Fitting a StraightJacket Barrel to your Rifle
Teludyne StraightJacket barrels can be fitted to most common bolt-action rifles along with AK series rifles. Also dedicated complete uppers are offered for AR platform rifles. Send your gun to Teludyne in South Carolina and Teludyne will install the composite barrel and ship your rifle back to you about four weeks later. Centerfire bolt-action prices start at $649.00 for steel or aluminum outer sleeves. Rimfire installations cost $699.00. Titanium-shrouded barrel systems are $799.00 installed. These prices include a removable, threaded muzzle brake.

StraightJacket Barrels for Biathletes
Our friends Lanny and Tracy Barnes, Team USA Biathletes, have used Teludyne composite barrels successfully in international competition. The ‘Twin Biathletes’ have endorsed the product: “We have had outstanding groups [with the StraightJacket Barrel System] and it didn’t seem like the cold had an effect on them at all. Our first races were in Canada where it was -15 to -25 degrees Fahrenheit. While everyone else’s groups seem to spread open off of the paper, we were laying the shots down right on top of each other. After the races Tracy flew right over to Italy and the race officials were really impressed with how it shot. Your Straightjackets are really turning heads. We are excited to make history this winter and in the next Olympics in 2014. Thanks — Tracy and Lanny Barnes.” This Editor talked with Lanny at SHOT Show and she confirmed that the barrel really seems to work for her discipline. She called it her “secret weapon”. The composite barrel saves weight (over a similar-diameter all-steel barrel), and it seems to be less affected by hot/cold cycles encountered during biathlon events.