Easton 5mm Full Metal Jacket Shafts 400 1 Doz.

The Easton 5mm Full Metal Jacket Shafts 400 (1 Doz.) represent the gold standard for compound bow hunters and traditional archers seeking precision, consistency, and field-proven durability. Built for hunters who demand arrows that perform identically shot after shot—whether you're taking practice rounds at 40 yards or threading shafts through cover at 60—these 5mm diameter shafts deliver the tight tolerances and straightness that separate ethical one-shot kills from wounded game. A dozen shafts gives you the working set needed for serious hunting seasons, practice sessions, and field backup.

The 5mm diameter and Full Metal Jacket construction provide superior structural integrity and consistent spine alignment—critical for reproducible broadhead flight and energy transfer on game. The 400 spine rating (measured in deflection units) suits mid-to-heavy draw weights typical of modern hunting compounds and traditional bows in the 45–65 lb range, ensuring the shaft flexes appropriately during the arrow's launch phase and stabilizes quickly downrange. This diameter-to-weight ratio minimizes wind deflection while maintaining the kinetic energy retention needed for penetration on elk, deer, and other medium to large game at practical hunting distances.

Hunters who shoot fixed-blade or mechanical broadheads will appreciate the shaft's predictable flight and the compatibility with standard nocks and fletching systems. The 400 spine works well with both 125- and 150-grain broadhead packages, allowing you to tailor your setup to specific game and shooting conditions without chasing spine inconsistency. Before heading afield, confirm your bow's draw weight and let-off against Easton's spine charts to ensure proper matching—undersized or oversized spine leads to erratic grouping and poor broadhead deployment when it matters most.