Choose FMJ when you need harder-hitting arrows! Boasts more bone-crushing power for deeper penetration and more pass throughs Guaranteed straightness: ± .002 Weight tolerance: ± 2 grains Small diameter and thick-wall carbon-fiber core High-strength N-FUSED carbon core with 7075 alloy metal jacket Shafts include X Nocks & HIT Brass inserts 50-75 grain Easily pulls from high-density targets Avalable sizes: 250 (17.7 gpi)