PMC‘s X-Tac line in 5.56x45mm (brand part no. 5.56X Case) loads a 55-grain full metal jacket boat tail bullet at a listed 3,120 feet per second, sold here by the full 1,000-round case for AR-platform shooters who train in serious volume. X-Tac is PMC’s higher-performance centerfire rifle line, running notably faster than a standard 55-grain 5.56 loading thanks to its boat tail bullet and tuned powder charge. The boat tail base reduces drag versus a flat-base FMJ, helping the bullet hold velocity and a flatter trajectory downrange even though it’s still built for reliable feeding rather than expansion. At this case quantity, true cost works out to roughly 48 cents a round. For 5.56x45mm shooters who want a faster-stepping loading in bulk, this rifle ammunition case is built to keep up.
Key Specifications
- The chambering is 5.56x45mm, the standard AR-platform NATO cartridge.
- The bullet weighs 55 grains, a standard weight for the caliber.
- The bullet is a full metal jacket boat tail (FMJBT), not a plain flat-base FMJ.
- The boat tail base reduces drag, helping the bullet hold velocity and a flatter trajectory downrange.
- Muzzle velocity is listed at 3,120 fps, notably fast for a 55-grain 5.56 loading.
- X-Tac is PMC’s higher-performance centerfire rifle line, distinct from its standard Bronze offering.
- True cost runs about $0.48 per round at this case quantity.
Frequently Asked Questions
Is this FMJ round good for hunting? No, full metal jacket bullets aren’t built to expand, so this load is best suited to range, training, and target use.
What does the boat tail do differently from a flat-base FMJ? Its tapered base reduces aerodynamic drag, helping the bullet hold velocity and a flatter trajectory at distance.
How does X-Tac differ from PMC’s Bronze rifle line? X-Tac is PMC’s higher-performance offering, running notably faster than a typical Bronze loading thanks to its boat tail bullet and tuned charge.
Buy PMC X-Tac 5.56x45mm 55gr FMJBT Case
A boat tail bullet and a hotter charge give this case a real edge in velocity over a standard 55-grain loading. Order from our Lubbock, Texas gun shop and it ships fast to your door.
