The 6mm GT, developed jointly by George Gardner of GA Precision and Tom Jacobs of Vapor Trail Bullets, is an improved variant of the 6mm Dasher featuring a 30-degree shoulder for reliable magazine feeding. Introduced in 2019 and quickly commercialized by Hornady, it was created to deliver unmatched accuracy, extremely low extreme spreads, exceptional barrel life, and competitive ballistics in a short-action package optimized for PRS, NRL, and benchrest shooting. Today it dominates production-division precision rifle competition while also excelling in varmint, predator, and light-to-medium game hunting. This article focuses specifically on ballistics, examining both external ballistics through trajectory, wind drift, and energy retention out to 1000 yards, as well as wound ballistics for practical terminal performance. The goal is to provide reloaders and competitors with precise, data-driven insight into why the 6mm GT has become the new benchmark in 6mm precision cartridges.
For complete reloading data, load development, and history, see our complete guide to the 6mm GT.
Core External Ballistics
The 6mm GT efficiently propels bullets weighing 95-115 grains at muzzle velocities of 2900-3050 fps from typical 26-28 inch barrels, with modern powders routinely achieving single-digit SDs. The cartridge’s optimized case design and sharp shoulder produce some of the lowest recoil and longest barrel life of any competitive 6mm while delivering ballistics that match or exceed the legendary 6mm Dasher and approach the 6mm Creedmoor with far greater efficiency. All common loads remain supersonic well beyond 1300 yards, making the 6mm GT the current gold standard in PRS and long-range precision shooting.
Bullet Drop to 1000 Yards
| Range (yards) | 103 gr Hornady ELD-X 3020 fps | 105 gr Berger Hybrid 3000 fps | 108 gr Hornady ELD-M 2975 fps | 109 gr Berger LRHT 2950 fps |
|---|---|---|---|---|
| 0 | -1.5 | -1.5 | -1.5 | -1.5 |
| 100 | +1.8 | +1.9 | +1.9 | +2.0 |
| 200 | 0.0 | 0.0 | 0.0 | 0.0 |
| 300 | -6.5 | -6.7 | -6.9 | -7.1 |
| 400 | -18.8 | -19.3 | -19.9 | -20.5 |
| 500 | -37.2 | -38.2 | -39.4 | -40.5 |
| 600 | -62.5 | -64.0 | -66.0 | -67.8 |
| 700 | -95.5 | -97.8 | -100.5 | -103.2 |
| 800 | -137.2 | -140.5 | -144.2 | -148.0 |
| 900 | -189.0 | -193.5 | -198.2 | -203.5 |
| 1000 | -252.0 | -258.0 | -264.0 | -271.0 |
These trajectories (200-yard zero, 1.5-inch sight height, standard metro conditions) showcase the 6mm GT‘s laser-like flatness. At 500 yards, drop stays under 41 inches across all loads – negligible with modern dialing or holdover reticles. The ultra-high BC Berger 109 gr LRHT minimizes additional drop accumulation at extreme range, saving over 20 inches compared to excellent but lower-BC alternatives at 1000 yards. Practical competition and hunting ranges easily extend to 1000+ yards for skilled shooters; the cartridge’s legendary consistency and low recoil make hitting at such distances routine rather than exceptional. Compare directly to the 6mm Dasher ballistics or 6mm Creedmoor ballistics to see the GT’s superior balance of velocity, accuracy, and longevity.
Wind Drift (10 mph Crosswind)
| Range (yards) | 103 gr ELD-X | 105 gr Berger Hybrid | 108 gr ELD-M | 109 gr Berger LRHT |
|---|---|---|---|---|
| 100 | 0.7 | 0.7 | 0.7 | 0.6 |
| 200 | 2.8 | 2.7 | 2.6 | 2.5 |
| 300 | 6.4 | 6.1 | 5.9 | 5.6 |
| 400 | 11.6 | 11.0 | 10.6 | 10.1 |
| 500 | 18.5 | 17.5 | 16.9 | 16.0 |
| 600 | 27.0 | 25.5 | 24.5 | 23.2 |
| 700 | 37.2 | 35.0 | 33.6 | 31.8 |
| 800 | 49.5 | 46.5 | 44.5 | 42.0 |
| 900 | 64.0 | 60.0 | 57.2 | 54.0 |
| 1000 | 81.0 | 75.8 | 72.2 | 68.0 |
Wind performance is where the 6mm GT truly dominates modern competition. The Berger 109 gr LRHT drifts roughly 16% less than the 103 gr ELD-X at 1000 yards and consistently wins national PRS matches for exactly this reason. At typical stage distances of 800 yards or less, even the excellent Hornady factory loads drift under 50 inches in a full-value 10 mph wind – easily correctable with minimal hold. The combination of high velocity, sky-high BCs, and minimal recoil allows shooters to focus on wind calls rather than fighting the cartridge, explaining its rapid takeover of the PRS Production and Open divisions.
Energy Retention
| Range (yards) | 103 gr ELD-X | 105 gr Berger Hybrid | 108 gr ELD-M | 109 gr Berger LRHT |
|---|---|---|---|---|
| 0 | 2085 | 2060 | 2125 | 2095 |
| 200 | 1805 | 1790 | 1850 | 1830 |
| 400 | 1555 | 1550 | 1605 | 1590 |
| 500 | 1435 | 1430 | 1485 | 1470 |
| 600 | 1320 | 1320 | 1370 | 1360 |
| 800 | 1110 | 1120 | 1170 | 1165 |
| 1000 | 930 | 950 | 1000 | 1000 |
Energy retention remains superb, with the highest-BC bullets carrying over 1000 ft-lbs past 1000 yards. Using 1000 ft-lbs as a conservative deer threshold, the 108 gr ELD-M and 109 gr LRHT deliver ethical performance to the limits of most shooters’ ability. All loads provide devastating varmint and predator authority to extreme distances. Match bullets typically require ≈1800 fps for reliable expansion; the 6mm GT maintains this velocity past 800 yards with heavy pills, extending effective hunting range dramatically when proper projectiles are chosen.
Terminal & Wound Ballistics
Bullet construction is absolutely critical in the 6mm GT. The cartridge’s moderate velocity window and extremely high sectional density produce spectacular wounds when expansion occurs, but pure match bullets can pencil through with limited disruption on game. All loads remain supersonic to practical ranges, delivering excellent hydraulic shock. The following profiles cover the five most popular projectiles in the caliber, prioritizing those with dedicated reviews on MyReloading.
Bullet Performance Profiles
Hornady 103 gr ELD-X
- Type – Polymer-tipped bonded hunting bullet
- Behavior – Explosive yet controlled expansion with outstanding weight retention
- Use – Varmint to deer-size game, predators, light hogs
- Effective Range – 0-800 yards (expands reliably to ≈1600 fps)
- Short Summary – The go-to hunting bullet for 6mm GT; turns the precision king into a devastating game taker.
More details available in our dedicated bullet profile page Hornady ELD-X bullet.
Hornady 108 gr ELD Match
- Type – Heat Shield tipped match bullet
- Behavior – Minimal expansion, fragments violently on varmints at high velocity
- Use – Competition, prairie dogs, coyotes, rock chucks
- Effective Range – Unlimited for steel, 0-500 yards explosive varmint
- Short Summary – Factory Hornady ammo accuracy legend; the load that wins matches and obliterates ground squirrels.
More details available in our dedicated bullet profile page Hornady ELD-M bullet.
Berger 109 gr Long Range Hybrid Target
- Type – Hybrid ogive ultra-high BC target bullet
- Behavior – Surprisingly good expansion on game at GT velocities, devastating on predators
- Use – PRS/NRL competition, long-range varmint/predator
- Effective Range – Extreme for targets, 0-800 yards on light-medium game
- Short Summary – The wind-defying champion that has made the 6mm GT the undisputed PRS Production king.
More details available in our dedicated bullet profile page Berger LRHT bullet.
Berger 105 gr Hybrid Target
- Type – Hybrid ogive match bullet
- Behavior – Excellent expansion window, violent on thin-skinned game
- Use – Competition, varmint, predator control
- Effective Range – Extreme for targets, 0-700 yards on game
- Short Summary – Slightly higher velocity than the 109 gr for barrels that prefer it; still elite BC and legendary accuracy.
More details available in our dedicated bullet profile page Berger Hybrid Target bullet.
Sierra 110 gr Tipped MatchKing
- Type – Acetyl-tipped hollow point boat tail
- Behavior – Dramatic fragmentation on impact at high velocity
- Use – Benchrest, PRS, explosive varmint work
- Effective Range – Extreme for targets, 0-600 yards on predators
- Short Summary – Classic Sierra accuracy with modern BC; a favorite for shooters wanting proven performance with updated aerodynamics.
More details available in our dedicated bullet profile page Sierra Tipped MatchKing bullet.
Practical Summary
For varmints and predators the Hornady ELD Match, Berger Hybrids, and Sierra Tipped MatchKing deliver match-winning accuracy and explosive results. For deer, antelope, and light hogs the Hornady 103 gr ELD-X provides reliable expansion and deep penetration to 700+ yards. The Berger 109 gr LRHT is the ultimate competition and long-range predator load, routinely winning national titles while doubling as a deadly varmint round.
Range discipline and bullet selection define success more than chasing maximum velocity in the 6mm GT – the cartridge already gives you everything needed to dominate steel or harvest game ethically at distances that humble larger calibers.
Dive deeper with the individual bullet profiles linked above, compare the predecessor in our 6mm Dasher ballistics, see the bigger brother in 6mm Creedmoor ballistics, or explore the gas-gun alternative via 6mm ARC ballistics. The full 6mm GT guide remains the definitive resource for reloaders seeking to extract maximum performance from this revolutionary cartridge.
