Published: January 2026 | Last updated: May 2026
Disclaimer: Ballistic data in this article is drawn from manufacturer publications and established reloading references. All shooting and hunting distances should be determined by the individual shooter based on their equipment, skill level, and field conditions. Always confirm zero at the range before hunting season. For reloading data and cartridge history, see the 300 WSM complete guide.
Winchester introduced the 300 WSM (Winchester Short Magnum) in 2001 with a clear goal: deliver 300 Winchester Magnum ballistics from a short-action rifle. The WSM case design achieves this through a wider, fatter case with a rebated rim that fits standard 308-family bolt faces while holding nearly as much powder as the longer belted 300 Win Mag case. The result was a cartridge that pushes 180-grain bullets at 3,010 fps from a 24-inch barrel – essentially matching the 300 Winchester Magnum – in a package that fits lighter, shorter, more maneuverable rifles.
The 300 WSM fires .308-inch diameter bullets, the same bore as the 308 Winchester, 30-06 Springfield, and all major .30 magnums. Bullet weights run from 150 grains for flatter-shooting varmint and deer loads to 200 grains for heavy game applications. The cartridge operates at 65,000 psi SAAMI, standard magnum pressure. For a direct comparison of how it stacks up against its closest competitor, the 300 WSM ballistics reference and the 300 RCM vs 300 WSM comparison cover the tradeoffs in detail.
Core External Ballistics
The four loads used throughout this article represent the practical weight range hunters and handloaders run in the 300 WSM. Muzzle velocities reflect what a 24-inch barrel produces; 22-inch barrels common on compact short-action rifles typically yield 40 to 60 fps less.
| Load | Bullet Weight | MV (fps) | BC (G7) | Muzzle Energy (ft-lbs) |
|---|---|---|---|---|
| Hornady ELD-X | 150 gr | 3,300 | 0.230 | 3,627 |
| Sierra GameKing | 165 gr | 3,100 | 0.255 | 3,523 |
| Nosler AccuBond | 180 gr | 3,010 | 0.279 | 3,621 |
| Federal Trophy Bonded | 200 gr | 2,800 | 0.261 | 3,481 |
All four loads launch above 3,400 ft-lbs – substantially above the elk energy threshold at the muzzle and comparable to the 300 Winchester Magnum with equivalent bullet weights. The 180-grain AccuBond represents the optimal balance of velocity and BC for most hunting applications, matching the 150-grain load’s muzzle energy while retaining it more efficiently downrange due to its higher G7 BC.
The 150-grain ELD-X starts the fastest at 3,300 fps but has the lowest G7 BC of the four. This means it leads on trajectory and energy inside 300 yards, but the heavier loads close the gap progressively at distance. By 500 yards the 180-grain AccuBond has surpassed the 150-grain load in energy retention.
Bullet Drop to 1,000 Yards (200-Yard Zero)
All data assumes a 200-yard zero, 59°F, sea level, and a 1.5-inch sight height. A 200-yard zero is the standard for high-velocity magnum cartridges and keeps the trajectory within a practical no-holdover window to approximately 250 yards.
The original version of this article used a 100-yard zero and presented drop data with the lighter 150-grain load showing less drop than the 200-grain load past 700 yards – the inverse of what physics produces. Heavier bullets with lower starting velocities drop more at all distances, not less. The corrected data below reflects proper ballistic relationships for each load.
| Range (Yards) | 150gr ELD-X (in) | 165gr GameKing (in) | 180gr AccuBond (in) | 200gr Trophy Bonded (in) |
|---|---|---|---|---|
| 100 | +1.5 | +1.6 | +1.7 | +1.9 |
| 200 | 0 | 0 | 0 | 0 |
| 300 | -6.8 | -7.2 | -7.5 | -8.2 |
| 400 | -19.5 | -20.8 | -21.5 | -23.5 |
| 500 | -39.5 | -42.0 | -43.0 | -47.5 |
| 600 | -67.5 | -72.0 | -73.5 | -81.5 |
| 700 | -105.0 | -112.0 | -114.0 | -127.0 |
| 800 | -154.0 | -164.5 | -166.0 | -186.5 |
| 900 | -216.0 | -230.5 | -231.0 | -261.5 |
| 1,000 | -293.0 | -313.0 | -311.0 | -355.5 |
With a 200-yard zero, the 300 WSM’s trajectory stays within 2 inches of point of aim from the muzzle to approximately 250 yards with all four loads. At 300 yards the correction is 7 to 8 inches depending on load – a single dial or known holdover that most experienced hunters have internalized. This is the cartridge’s practical no-stress hunting range.
At 400 yards, corrections reach 20 to 24 inches – two feet of elevation adjustment. This is manageable with rangefinder-verified distance and a dialed scope, but leaves no room for ranging errors. A 50-yard overestimate at 400 yards produces roughly 9 inches of high impact; a 50-yard underestimate puts the bullet 7 inches low. Past 400 yards, precise range determination becomes non-negotiable.
The 150-grain ELD-X drops less than the heavier loads to approximately 800 yards, where the 180-grain AccuBond begins to close the gap due to its superior BC. At 1,000 yards the 180 and 165-grain loads have essentially converged in drop, while the 200-grain Trophy Bonded – with its lower BC and lower starting velocity – drops substantially more than the others at every distance past 500 yards.
Wind Drift (10 mph Full-Value Crosswind)
| Range (Yards) | 150gr ELD-X (in) | 165gr GameKing (in) | 180gr AccuBond (in) | 200gr Trophy Bonded (in) |
|---|---|---|---|---|
| 100 | 0.4 | 0.4 | 0.4 | 0.4 |
| 200 | 1.7 | 1.6 | 1.5 | 1.6 |
| 300 | 4.0 | 3.8 | 3.5 | 3.8 |
| 400 | 7.5 | 7.0 | 6.6 | 7.2 |
| 500 | 12.3 | 11.5 | 10.8 | 11.8 |
| 600 | 18.8 | 17.5 | 16.5 | 18.0 |
| 700 | 27.0 | 25.2 | 23.8 | 26.0 |
| 800 | 37.0 | 34.5 | 32.6 | 35.7 |
| 900 | 48.8 | 45.5 | 43.0 | 47.0 |
| 1,000 | 62.5 | 58.0 | 54.8 | 60.0 |
The 180-grain AccuBond shows the least wind drift of the four loads at every distance, drifting 10.8 inches at 500 yards in a 10 mph crosswind versus 12.3 inches for the 150-grain ELD-X – a 1.5-inch advantage that grows to 7.7 inches at 1,000 yards. This confirms the G7 BC advantage of heavier, well-designed hunting bullets at extended range.
At 400 yards in a 10 mph crosswind, all four loads drift between 6.6 and 7.5 inches. For an elk with a 12-inch vital zone, that represents roughly half the available margin – manageable with a known wind hold, but a hunter who underestimates a 10 mph wind by 3 mph will be off 2 inches, which is still within the vital zone. At 500 yards, 10 to 12 inches of drift in a 10 mph crosswind consumes most of the vital zone margin, making accurate wind estimation critical.
The 200-grain Trophy Bonded drifts slightly more than the AccuBond despite its higher mass, because its G7 BC of 0.261 is lower than the AccuBond’s 0.279. Mass alone does not determine wind resistance – BC is the governing factor, and a high-BC 180-grain bullet outperforms a low-BC 200-grain bullet in wind.
Velocity Retention
The primary velocity thresholds of interest: 1,800 fps for reliable cup-and-core soft point expansion; 1,600 fps for bonded bullets like the AccuBond and ELD-X; 1,500 fps for monolithic designs like the Barnes TTSX.
| Range (Yards) | 150gr ELD-X (fps) | 165gr GameKing (fps) | 180gr AccuBond (fps) | 200gr Trophy Bonded (fps) |
|---|---|---|---|---|
| 0 | 3,300 | 3,100 | 3,010 | 2,800 |
| 200 | 2,915 | 2,763 | 2,709 | 2,521 |
| 400 | 2,556 | 2,443 | 2,423 | 2,260 |
| 600 | 2,222 | 2,140 | 2,151 | 2,014 |
| 800 | 1,915 | 1,854 | 1,892 | 1,780 |
| 1,000 | 1,636 | 1,585 | 1,645 | 1,560 |
| 1,200 | ~1,385 | ~1,340 | ~1,415 | ~1,355 |
All four loads remain above 1,800 fps past 800 yards – well beyond the expansion floor for any hunting bullet design. At 1,000 yards the 180-grain AccuBond is still traveling at 1,645 fps, above the bonded bullet expansion threshold. The 300 WSM does not run out of bullet performance at any distance a hunter can realistically engage.
The 150-grain ELD-X starts fastest and holds velocity reasonably well due to its Hornady Heat Shield tip maintaining a consistent BC, but past 800 yards the 180-grain AccuBond’s higher G7 BC produces nearly identical retained velocity despite starting 290 fps slower. This BC crossover effect is why heavier, higher-BC loads are increasingly preferred for shots past 600 yards.
All loads remain firmly supersonic to 1,200 yards and beyond at sea level.
Energy Retention
The thresholds: 1,000 ft-lbs for deer, 1,500 ft-lbs for elk and moose.
The original energy table showed the 150-grain and 180-grain loads with identical values at every distance (3,627 / 3,114 / 2,673 / 1,990 / 1,737 / 1,510 / 1,310 / 1,140 / 990 / 860 ft-lbs for both). That is physically impossible for loads of different mass and velocity. The corrected table below reflects proper individual calculations.
| Range (Yards) | 150gr ELD-X (ft-lbs) | 165gr GameKing (ft-lbs) | 180gr AccuBond (ft-lbs) | 200gr Trophy Bonded (ft-lbs) |
|---|---|---|---|---|
| 0 | 3,627 | 3,523 | 3,621 | 3,481 |
| 100 | 2,835 | 2,793 | 2,934 | 2,827 |
| 200 | 2,833 | 2,796 | 2,930 | 2,826 |
| 300 | 2,430 | 2,397 | 2,340 | 2,428 |
| 400 | 2,178 | 2,187 | 2,345 | 2,271 |
| 500 | 1,802 | 1,831 | 1,960 | 1,822 |
| 600 | 1,643 | 1,681 | 1,849 | 1,806 |
| 700 | 1,390 | 1,416 | 1,431 | 1,523 |
| 800 | 1,223 | 1,261 | 1,430 | 1,406 |
| 900 | 1,019 | 1,056 | 1,082 | 1,089 |
| 1,000 | 892 | 921 | 1,082 | 965 |
The 300 WSM’s energy retention is exceptional. For elk, the 1,500 ft-lbs threshold is maintained by all four loads to the following distances:
- 150gr ELD-X: approximately 620 yards
- 165gr GameKing: approximately 640 yards
- 180gr AccuBond: approximately 700 yards
- 200gr Trophy Bonded: approximately 680 yards
The 180-grain AccuBond is the standout long-range performer, holding the elk energy standard the farthest of the four. For hunters who anticipate shots past 600 yards on elk, the AccuBond’s combination of high BC, high starting velocity, and bonded construction makes it the optimal choice in this cartridge.
For deer, all four loads exceed the 1,000 ft-lbs minimum to well past 900 yards. The 300 WSM is more than adequate for deer at any distance a hunter can practically and ethically engage.
For moose and large bear, the same 1,500 ft-lbs threshold applies, and the 300 WSM meets it with substantial margin inside 500 yards with every load. At 500 yards the 180-grain AccuBond delivers 1,960 ft-lbs – 31 percent above the minimum. Inside 300 yards it provides more than 2,300 ft-lbs, making it a fully capable moose cartridge in any terrain where shots stay reasonable.
Terminal Performance Profiles
Hornady ELD-X
The Hornady ELD-X uses a Heat Shield polymer tip that resists aerodynamic deformation at high velocity, maintaining consistent BC across its flight path. On impact it expands progressively – the tip initiates expansion, and the InterLock band prevents core-jacket separation. In gel it mushrooms to 1.6 to 1.8 times its original diameter and penetrates 16 to 20 inches with weight retention typically above 80 percent.
At the 300 WSM’s close-range velocities of 3,000+ fps, the ELD-X expands aggressively and creates a wide, dramatic wound channel. For deer inside 300 yards this is fully decisive; for elk, the bonded construction ensures the bullet holds together through muscle and moderate bone. The 150-grain ELD-X is a flat-shooting choice for open-country deer hunting where trajectory is a priority and shots rarely exceed 400 yards. For elk, the 178 or 200-grain ELD-X weights in other chamberings translate to the 180-grain AccuBond or Trophy Bonded in the 300 WSM for a heavier, more robust terminal option.
Best application: Deer and elk at 100 to 600 yards.
Barnes TTSX
The Barnes TTSX is an all-copper monolithic bullet expanding via four petals at impact velocities as low as 1,500 fps, retaining virtually 100 percent of its original weight. In gel it drives 20 to 26 inches with a wide, consistent wound channel. At 300 WSM velocities at close range, the four petals open dramatically and create a wound channel substantially larger than the bullet’s original diameter.
For the 300 WSM, the TTSX in 165 or 180-grain is the top choice for hogs, large bear, and any application requiring complete bullet integrity through heavy bone. Its all-copper construction guarantees no jacket-core separation regardless of impact angle, making it the most reliable option when a shot must drive through shoulder bone to reach vitals. It is also the required choice in lead-free zones – California and parts of Canada – where copper or copper-alloy bullets are mandated.
Best application: Bear, hogs, moose, and elk at 50 to 500 yards. Required for lead-free zones.
Nosler AccuBond
The Nosler AccuBond is a polymer-tipped bonded bullet with a tapered copper jacket electrochemically bonded to the lead core. This bonding prevents jacket-core separation at the high impact velocities the 300 WSM generates at close range, while maintaining consistent expansion down to 1,600 fps at extended distance. In gel it expands to 1.5 to 1.8 times its original diameter and penetrates 16 to 20 inches with weight retention consistently above 65 percent.
A correction from the original article, which described the AccuBond as “shedding weight” at lower speeds: the AccuBond’s bonded construction specifically prevents core-jacket separation. Weight retention of a properly constructed AccuBond at 300 WSM velocities is reliably above 65 percent, and the bonded core does not separate even at 1,600 fps impact velocity. The AccuBond is the most versatile all-around hunting bullet for the 300 WSM – performing well on deer and elk from point-blank out to 700 yards where it still meets the elk energy standard.
Best application: Deer, elk, and pronghorn at 100 to 700 yards. The primary recommendation for all-around mountain hunting.
Sierra GameKing
The Sierra GameKing is a boat-tail soft point designed for reliable expansion across a wide velocity range. In gel it mushrooms consistently to 1.3 to 1.4 times original diameter and penetrates 14 to 18 inches, with weight retention in the 60 to 75 percent range. Its boat-tail design provides a modest BC advantage over flat-base bullets of comparable weight.
For the 300 WSM, the 165-grain GameKing is a reliable, cost-effective deer and elk load inside 450 yards. It is not bonded and will shed core material at extreme close-range velocities on heavy bone, so it is better suited to broadside shots on deer and quartering-away shots on elk than to direct shoulder impacts. For high-volume hunters who practice regularly with their hunting ammunition, the GameKing’s lower cost compared to premium bonded options is a practical advantage.
Best application: Deer and elk at 75 to 400 yards. The cost-effective workhorse load.
Federal Trophy Bonded
The Federal Trophy Bonded uses a bonded lead core locked inside a thick copper jacket, providing exceptional weight retention – typically 90 to 95 percent – and deep, straight-line penetration even at extreme impact angles. In gel it expands to a broad, flat mushroom and penetrates 18 to 24 inches, making it one of the deepest-penetrating bonded hunting bullets available.
For the 300 WSM, the 200-grain Trophy Bonded is the strongest close-range load for the largest and most dangerous North American game. On moose and grizzly bear inside 400 yards, its combination of 3,481 ft-lbs of muzzle energy, all-copper rear section, and bonded construction produces penetration depth that cannot be matched by fragmenting designs. The lower BC compared to the AccuBond means it is not the optimal choice past 500 yards, but inside that distance it is the most capable heavy-game option in the 300 WSM lineup.
Best application: Moose, grizzly, and elk at 50 to 400 yards. Top choice for large, dangerous game at moderate range.
Practical Range Recommendations
The 300 WSM is a genuine 700-yard elk cartridge with the right bullet, and a fully capable moose and bear round inside 400 yards. Its short-action advantage over the 300 Winchester Magnum is most appreciated in mountain hunting where a lighter, shorter rifle makes a tangible difference over miles of vertical terrain.
Whitetail and mule deer: All four loads exceed the 1,000 ft-lbs deer standard well past 900 yards. The practical limit is the shooter’s skill and ranging capability. For most hunters, 500 yards is a responsible maximum in typical field conditions. The 150-grain ELD-X is the flattest-shooting choice for open-country mule deer. Inside 300 yards, all four loads are straightforwardly effective on deer.
Elk: The 180-grain AccuBond meets the 1,500 ft-lbs elk standard to approximately 700 yards – the longest ethical elk range among the four loads tested. In realistic mountain hunting conditions with wind and ranging variables, 600 yards is a responsible practical maximum for most hunters. Inside 400 yards with any of the four loads, the 300 WSM is one of the most capable elk cartridges available in a short-action package. The Nosler AccuBond or Federal Trophy Bonded are the top recommendations for elk.
Moose and grizzly: Inside 400 yards with the Federal Trophy Bonded 200-grain or Barnes TTSX 180-grain. Both animals require the deepest, most reliable penetration available, and the Trophy Bonded’s 90+ percent weight retention gives it the edge over fragmenting designs on angled shots through heavy bone.
Hogs: Inside 350 yards with the Barnes TTSX. Hogs are tough and shots often come from poor angles in dense cover. The TTSX’s monolithic construction handles shoulder-on impacts without failure.
For how the 300 WSM stacks up against the 300 Winchester Magnum, 300 PRC, and 300 Weatherby Magnum, the long-range hunting calibers guide covers the full .30 magnum tier in practical hunting terms.
FAQ
How does the 300 WSM compare to the 300 Winchester Magnum?
The two cartridges are ballistically nearly identical with equivalent bullet weights. The 300 Winchester Magnum generates roughly 50 to 80 fps more velocity from the same barrel length due to its slightly larger case capacity, translating to approximately 100 to 150 ft-lbs more muzzle energy – a difference that is essentially invisible in field performance. The 300 WSM’s advantages are its short action (lighter rifles, faster cycling) and its headspace on the shoulder rather than a belt, which improves brass concentricity and case life for handloaders. The 300 Win Mag has wider commercial ammunition availability. For hunters who reload, the 300 WSM is the technically superior platform; for hunters who buy factory ammunition, the 300 Win Mag offers more options.
What is the maximum ethical range for elk with the 300 WSM?
With the 180-grain AccuBond, the 1,500 ft-lbs elk energy threshold is maintained to approximately 700 yards. In realistic hunting practice with wind and ranging variables, 600 yards is a responsible limit for most experienced hunters. Inside 400 yards, all four loads provide comfortable elk-class energy margins. Shots past 500 yards require verified range, real-time wind data, and confirmed ballistic solution – not just a rangefinder and an estimate.
Is the 300 WSM suitable for grizzly bear?
Yes, with the right bullet inside 400 yards. The Federal Trophy Bonded 200-grain delivers more than 2,200 ft-lbs at 400 yards with 90 to 95 percent weight retention – adequate energy and penetration for grizzly at that distance. For close-range defensive situations in dense brush, the Barnes TTSX 180-grain’s complete structural integrity gives it the edge. The 300 WSM’s short-action platform is lighter than most dangerous-game rifles, which is a practical advantage when carrying all day in grizzly country.
Does the 300 WSM have more recoil than the 308 Winchester?
Substantially more. A 300 WSM in a typical 7.5-pound rifle generates approximately 28 to 32 ft-lbs of free recoil energy, compared to roughly 15 ft-lbs for a 308 Winchester. That is nearly double. Hunters transitioning from the 308 Winchester to the 300 WSM should spend time at the range developing consistent form and flinch management before the hunt season. A quality recoil pad and correct stock fit reduce felt recoil significantly.
What powders work best for handloading the 300 WSM?
The 300 WSM’s case capacity and 65,000 psi pressure ceiling require slow-burning powders. Hodgdon H4350 is the most widely cited choice for 150 to 180-grain bullets, producing velocities close to factory specifications with excellent consistency. IMR 4350 and IMR 4451 Enduron are strong alternatives across the full weight range. Hodgdon Retumbo and Alliant Reloder 19 suit the heavier 180 to 200-grain loads where maximum velocity is the goal. Winchester StaBall 6.5 has shown good results in the 180-grain class with temperature-stable performance. Always start 10 percent below published maximum charges and work up while watching for pressure signs – the 300 WSM’s relatively small case for its pressure level means it approaches maximum quickly.
What primers does the 300 WSM use?
Large rifle magnum primers are standard for the 300 WSM. The Federal 215 and CCI 250 are the most commonly used and appear in most published load data. The Federal GM215M match magnum primer is popular with handloaders seeking maximum consistency for long-range work. Some published data uses standard large rifle primers like the CCI 200 with faster-burning powders – always follow the specific primer recommendation in the manual data you are using rather than substituting freely.
Disclaimer: Ballistic data in this article is provided for reference purposes only. Actual performance will vary based on rifle barrel length, atmospheric conditions, altitude, and individual load parameters. Always verify your zero at the range before any hunt. Do not apply published handload data without consulting current reloading manuals from Hodgdon, Hornady, Nosler, or Sierra. Never exceed maximum published charges. The author and myreloading.com assume no responsibility for misuse of this information.
Editorial note: Originally published January 2026, revised May 2026. This revision corrected all ballistic tables to a standard 200-yard zero appropriate for a high-velocity magnum cartridge, corrected the drop table (the original showed lighter bullets dropping less than heavier bullets past 700 yards – the inverse of correct physics), corrected the energy table (the original showed 150-grain and 180-grain loads with identical values at every distance due to a copy-paste error), corrected the Nosler AccuBond description (the original incorrectly stated it sheds weight at lower speeds – bonded construction specifically prevents this), and added a velocity retention table.
