Easton has improved upon two of the biggest performance factors facing bowhunters out West with its new Injexion series of arrows. They found a way to make a micro diameter hunting arrow to reduce wind drift and increase penetration. That might not sound like big news, but it’s bigger than it seems. Hunting arrows like the Axis were at the minimum arrow shaft diameter that could be achieved with standard internal inserts. Easton stepped up and developed a new component system using smaller diameter ferrules and a finer thread pitch to accommodate the new "micro” diameter shafts. Enter Deep Six – a stainless steel hidden insert modeled after the original HIT inserts developed for Easton’s popular Axis series shafts. The inserts utilize 40 threads-per-inch to increase thread engagement by 25% and reduce the likelihood of broadheads and field points rattling loose. The new stainless inserts are reported to be 65% stronger than aluminum and weigh in at 20 grains. The Injexion shafts are available in all carbon or A/C (aluminum wrapped with carbon) construction. Three spines are available for each shaft type: .450, .390, and .330 for the A/C Injexion, and .480, .400, and .330 for the all Carbon Injexion.
My A/C Injexion .330 spine shafts measure 0.242” in diameter compared to 0.269” for my .340 spine Axis FMJ shafts. That’s a diameter reduction of 10% which translates to a noticeable benefit in cross-wind performance. The frontal area of the Injexion .330 shaft is 19% less than the Axis FMJ .340 which increases penetration noticeably in foam 3D targets. The 20 grain stainless insert adds a little extra mass to the front of the arrow shaft keeping FOC a bit higher. The A/C Injexion shafts I tested have excellent straightness, consistent spine and shot outstanding long range groups. Shaft toughness so far has been excellent and should prove over time to be as good as, or better than, the Axis FMJ shafts I have been using. The factory cresting is compatible with superglues and solvent based glues like Fletch-Tite and didn’t require any special prep to fletch and get strong, nearly-instant vane adhesion. The wraps can be removed in seconds with a single slice down their length and a hot water dip. The glue residue under the cresting wipes clean with a cloth and warm water, so it’s definitely not a deal breaker if you’re not a fan of the factory cresting. These shafts are designed for hunting and have plenty of mass to provide excellent momentum and kinetic energy numbers. Finished .330 spine Injexion arrows in the 27 – 29 inch range should weigh 415 – 470 grains depending on shaft construction (Carbon or A/C), vane selection, and cresting choice. If stretching your shooting range and punching deep wounds into large, heavy-boned animals are high on your priority list, then the Injexion shafts should be at the top of your shopping list.
The factory installed cresting (arrow wraps) are quite a bit thicker and longer than a typical vinyl wrap. This adds approximately 16 grains to the back end of the shaft which negates the FOC advantages of the new insert. The wraps may get brittle in colder temps - I had one crack on a 3D target pass-through which caused a loose fletch. Currently the Deep Six broadhead choices are fairly limited but there are a few proven performers from both NAP and Muzzy. I’m sure other companies will follow so there will be plenty of options in the near future. Lastly, the price is pretty high for both the carbon and A/C versions.