Ammo Reports Team
| Feature | Detail |
|---|---|
| Primary Use | Hunting small to medium game at extended range |
| Bullet Type | Barnes Triple-Shock X (TSX) all-copper hollow point |
| Bullet Weight | 78 grain |
| Case Material | Brass |
| Primer Type | Boxer |
| Packaging | 20 rounds per box |
| Typical Price | $45.59/box — $2.28/round |
| Closest Competitors | Hornady 224 Valkyrie 88 gr ELD Match, Winchester 224 Valkyrie 72 gr Copper Impact, Federal American Eagle 224 Valkyrie 75 gr TMJ |
Official Specs
| Spec | Value | Source |
|---|---|---|
| Muzzle Velocity (fps) | — | Not published |
| Muzzle Energy (ft-lbs) | — | Not published |
| Bullet Weight | 78 gr | Manufacturer |
| Bullet Type | Barnes TSX all-copper hollow point | Manufacturer |
| BC G1 | — | Not published |
| BC G7 | — | Not published |
| Manufacturer SKU | — | Not published |
| UPC | — | Not published |
| Reloadable | Yes | Brass case, Boxer primer |
Note: Federal Premium does not publish muzzle velocity, muzzle energy, or ballistic coefficient data for this specific load in publicly available spec sheets at the time of writing. The ballistics table below uses Barnes-published TSX 78 gr reference data for the 224 Valkyrie and is clearly labeled as a calculated estimate. If Federal publishes updated data, this page will be revised accordingly.
Ballistics Table
Calculated estimate. Real-world results vary by barrel length, temperature, altitude, and lot. Community submissions will provide measured muzzle velocity for comparison.Reference muzzle velocity of 2,750 fps used, based on Barnes published data for a 78 gr TSX in 224 Valkyrie from a 24″ barrel. Federal has not published an official muzzle velocity for this load. All values marked with ~ to indicate estimated figures.
| Yards | Velocity (fps) | Energy (ft-lbs) | Trajectory (in) |
|---|---|---|---|
| 0 | ~2,750 | ~1,310 | -1.5 |
| 100 | ~2,537 | ~1,115 | 0.0 ← zero |
| 200 | ~2,333 | ~943 | -3.7 |
| 300 | ~2,138 | ~792 | -13.5 |
| 400 | ~1,951 | ~659 | -30.4 |
| 500 | ~1,774 | ~545 | -56.0 |
Sight height: 1.5″ above bore. Zero: 100 yards. G1 BC ~0.360 assumed from Barnes reference data for 78 gr TSX; Federal has not confirmed this value.
Key takeaway: The 78 grain TSX in 224 Valkyrie carries energy well past 300 yards, remaining above 700 ft-lbs at that distance — a threshold commonly cited for clean kills on deer-sized game under ethical hunting conditions. Drop becomes significant beyond 300 yards, requiring precise range estimation and holdover. Hunters pushing shots to 400–500 yards should confirm actual muzzle velocity from their specific barrel length, as the 224 Valkyrie is sensitive to barrel length variation. These estimates should be verified with a chronograph before using this load at extended distances.
The Barnes TSX Bullet in 224 Valkyrie
The Barnes Triple-Shock X bullet is one of the most recognizable lead-free hunting projectiles in production. Its all-copper construction eliminates the lead core entirely, which matters both for terminal performance and for hunters operating in jurisdictions with lead-free ammunition regulations — including California and portions of other western states where condor habitat restrictions apply.
The TSX design uses a hollow point cavity that initiates expansion reliably across a wide velocity range. Three relief grooves cut into the shank reduce bore friction and pressure compared to earlier all-copper designs, which historically ran high. The monolithic construction means the bullet does not shed a jacket — weight retention is typically cited near 100%, which translates to deep, straight wound channels even through heavy bone.
In the 224 Valkyrie specifically, the 78 grain weight is notable. The cartridge was designed around heavier, high-BC projectiles to extend effective range beyond what .223 Remington can achieve from a standard AR-15 platform. A 78 grain all-copper bullet is longer than a comparable lead-core bullet of the same weight, which can affect magazine seating and twist rate requirements. Federal’s use of this bullet in the Valkyrie platform reflects the cartridge’s purpose: extended-range performance with terminal authority beyond 300 yards.
Best Uses
Good fit:
- Hunting whitetail deer, pronghorn, and similarly sized game at ranges from 100 to 400 yards where the TSX’s retained weight and expansion deliver clean kills
- Hunting in states or regions with lead-free ammunition mandates, where all-copper construction is a legal requirement rather than a preference
- Hunters running AR-platform rifles in 224 Valkyrie who want a single load capable of both acceptable accuracy and reliable terminal performance on medium game
- Situations where pass-through performance is preferred, such as angled shots on deer where the bullet must penetrate heavy shoulder material before reaching vitals
Not the right tool for:
- Varmint or predator hunting where rapid fragmentation and minimal pelt damage are priorities — the TSX is built to hold together, not blow up
- Target shooting or competition use, where match-grade hollow points offer better BC and cost efficiency
- Hunters on a tight per-round budget — at $2.28/round this is a premium hunting load, and practice with it at volume becomes expensive
- Rifles with twist rates slower than 1:7″, which may not stabilize a 78 grain all-copper bullet adequately at hunting distances
Reliability Notes
No structured submissions yet.
Based on manufacturer claims and open-source reporting, the Barnes TSX platform has a long field record of consistent expansion at moderate impact velocities, which is relevant given the 224 Valkyrie’s velocity at extended ranges. Federal Premium’s brass cases are generally regarded in open-source forums as being of consistent quality and suitable for single reloading, though this page covers factory ammunition only. The monolithic construction eliminates core-jacket separation as a failure mode. No lot-specific failure reports for this load were identified in open sources at the time of writing. All notes here reflect manufacturer claims or publicly available user reporting — not structured test data.
Competitors
| Load | Weight | Bullet | BC G1 | Muzzle Velocity | Price/Box | Notes |
|---|---|---|---|---|---|---|
| Hornady Black 224 Valkyrie 88 gr ELD Match | 88 gr | ELD Match | 0.471 | 2,675 fps | ~$28–$34 | Higher BC, not a hunting bullet — no expansion |
| Winchester Copper Impact 224 Valkyrie 72 gr | 72 gr | Extreme Point Copper | ~0.330 | 3,000 fps | ~$38–$44 | Lead-free, similar use case; lighter bullet, higher velocity |
| Hornady Varmint Express 224 Valkyrie 60 gr V-MAX | 60 gr | V-MAX polymer tip | ~0.265 | 2,850 fps | ~$25–$30 | Budget-friendly; fragmentation design, not for medium game |
| Federal American Eagle 224 Valkyrie 75 gr TMJ | 75 gr | Total Metal Jacket | — | 3,000 fps | ~$18–$22 | Budget training load; non-expanding, no hunting application |
| Nosler Trophy Grade 224 Valkyrie 70 gr RDF | 70 gr | RDF (match) | 0.377 | 2,950 fps | ~$40–$48 | Match bullet; not designed for terminal expansion on game |
| Barnes VOR-TX 224 Valkyrie 62 gr TSX | 62 gr | TSX (same bullet family) | ~0.295 | 3,100 fps | ~$42–$48 | Same TSX bullet, lighter weight; higher velocity, less sectional density |
The Hornady Black 88 gr ELD Match offers significantly better ballistic coefficient for long-range accuracy but uses a match bullet not designed for controlled expansion on game. The Winchester Copper Impact 72 gr is the most direct lead-free hunting competitor and runs faster, though the 78 gr TSX carries more sectional density. The Barnes VOR-TX 62 gr TSX uses the same bullet family at a lighter weight — useful for comparison when evaluating sectional density tradeoffs.
Price Reality
- Typical retail price: $45.59 per box of 20 rounds
- Per-round cost: $2.28/round
- Case pricing (200 rounds / 10 boxes): not commonly listed as a case option at major retailers; buyers typically purchase individual boxes
- The Hornady Black 88 gr ELD Match runs $28–$34/box — roughly $0.60–$0.80 less per round, but is a match bullet with no hunting application
- The Winchester Copper Impact 72 gr runs $38–$44/box — $0.08–$0.38 less per round for a comparable lead-free hunting load
- The Federal American Eagle 75 gr TMJ runs $18–$22/box — less than half the cost per round, but serves only as a training round with no terminal expansion
- Fair price benchmark: $42–$50/box is consistent with premium lead-free hunting ammunition in this caliber. Prices above $52/box for a single box of 20 should prompt comparison shopping. This load does not commonly appear in significant discount windows.
Prices change. Check the Where to Buy block for current listings.
Where to Buy
Federal Premium 224 Valkyrie 78 Grain TSX (Box)
Affiliate links. These do not influence ratings, data, or any editorial content on this page.
FAQ
Does the 78 grain TSX expand reliably at extended 224 Valkyrie velocities?
The Barnes TSX is engineered to expand across a wide impact velocity range, which is part of its appeal for long-range hunting. At 400–500 yards, the 224 Valkyrie is delivering impact velocities that may fall toward the lower threshold of reliable TSX expansion depending on barrel length and conditions. Barnes generally recommends a minimum impact velocity of around 1,800 fps for reliable TSX expansion, and the 78 gr load in 224 Valkyrie should remain above that threshold at practical hunting distances under 500 yards. Hunters extending shots beyond 400 yards should confirm their specific velocity profile with a chronograph before relying on this load at the edge of its effective range.
Is this load legal for hunting in California and other lead-free states?
Yes. The all-copper construction of the Barnes TSX bullet contains no lead, making this load compliant with California’s Upland Game Bird and Condor Zone regulations that mandate non-lead ammunition. Hunters in other states with partial or full lead-free requirements should verify their specific regulations, as rules vary by species, zone, and land management agency. This is one of the primary reasons to choose this load over lead-core Federal Premium options at a similar price point. Always confirm current regulations with your state wildlife agency before the season.
How does the 78 grain TSX compare to the Barnes VOR-TX 62 grain TSX in 224 Valkyrie?
Both loads use the same Barnes TSX bullet family, but the 78 grain version carries meaningfully more sectional density, which translates to deeper penetration on medium-sized game like deer and pronghorn. The 62 grain VOR-TX runs faster — typically around 3,100 fps — giving it a flatter trajectory at shorter distances. The 78 grain load sacrifices some velocity but retains energy better at range due to its greater mass. For shots beyond 250 yards on deer-sized game, the 78 grain option is the more conservative choice for terminal performance.
Will this load cycle reliably in an AR-15 platform chambered in 224 Valkyrie?
The 224 Valkyrie was designed for the AR-15 platform, and factory loads from Federal Premium are spec’d to function in properly headspaced Valkyrie chambers. However, the 78 grain all-copper bullet is longer than a lead-core bullet of equivalent weight, which can affect magazine seating depth and feed angle in some configurations. Hunters should confirm function-testing with their specific upper receiver and magazine before fielding this load. No widespread cycling issues with this load have been identified in open-source reporting, but individual rifle fit should always be verified.
Is this load appropriate for coyote or predator hunting?
The TSX bullet is not designed for rapid fragmentation on impact — it is built to expand, penetrate deeply, and retain nearly all of its weight. For coyote hunting where pelt preservation matters, this is a poor choice, as the through-and-through wound channel the TSX creates tends to leave large exit wounds. For pest control where pelt condition is irrelevant, the load will be effective but is significantly overpriced relative to varmint-specific options. Varmint hunters would be better served by a fragmenting bullet such as the V-MAX or Nosler Ballistic Tip Varmint in 224 Valkyrie at a lower per-round cost.
