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 7mm SAUM complete guide.
Remington introduced the 7mm Short Action Ultra Magnum (7mm SAUM) in 2002 as part of their push to deliver full magnum performance in short-action rifles. The case, derived from the .300 Remington Ultra Magnum necked and shortened, achieves a very efficient powder capacity-to-bore-diameter ratio that extracts high velocity from a modest case length. The result is a cartridge that pushes 140-grain bullets to approximately 3,060 fps and 175-grain bullets to 2,780 fps from a standard 24-inch barrel – matching or closely approaching 7mm Remington Magnum performance in a short-action package that cycles faster and pairs with lighter rifles.
The cartridge fires .284-inch diameter bullets, the same bore as the 7mm Remington Magnum, 7mm PRC, 7mm WSM, and 284 Winchester. The 7mm SAUM competed directly with the 7mm WSM during the early 2000s short-action magnum era, and both cartridges produce nearly identical ballistics. The WSM ultimately achieved wider commercial support; the SAUM is today primarily a handloading proposition, with limited factory ammunition but good component availability. For context on where the 7mm SAUM fits among short-action 7mm magnums, the 7mm WSM ballistics and 7mm PRC ballistics pages offer direct comparisons.
Core External Ballistics
The four loads used throughout this article cover the practical hunting weight range for the 7mm SAUM. Muzzle velocities reflect what a 24-inch barrel produces; short-action rifles with 22-inch barrels lose approximately 25 to 40 fps.
| Load | Bullet Weight | MV (fps) | BC (G7) | Muzzle Energy (ft-lbs) |
|---|---|---|---|---|
| Nosler AccuBond | 140 gr | 3,060 | 0.262 | 2,910 |
| Hornady ELD-X | 150 gr | 2,975 | 0.337 | 2,945 |
| Nosler Partition | 160 gr | 2,885 | 0.268 | 2,958 |
| Barnes LRX | 175 gr | 2,780 | 0.289 | 3,004 |
The muzzle energy figures cluster tightly between 2,910 and 3,004 ft-lbs – a narrow spread that reflects the inverse velocity-mass relationship in this cartridge. All four loads launch well above the elk energy threshold. The 150-grain ELD-X carries the highest G7 BC at 0.337, which makes it the most efficient downrange performer despite starting slower than the 140-grain AccuBond. The 175-grain LRX produces the most muzzle energy and carries the second-highest BC – making it the optimal load for extended-range elk hunting.
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.
| Range (Yards) | 140gr AccuBond (in) | 150gr ELD-X (in) | 160gr Partition (in) | 175gr LRX (in) |
|---|---|---|---|---|
| 100 | +1.6 | +1.6 | +1.7 | +1.8 |
| 200 | 0 | 0 | 0 | 0 |
| 300 | -7.5 | -7.2 | -7.9 | -8.6 |
| 400 | -21.5 | -20.4 | -22.7 | -24.5 |
| 500 | -43.5 | -40.9 | -45.8 | -49.5 |
| 600 | -74.5 | -69.6 | -78.4 | -84.9 |
| 700 | -115.5 | -107.5 | -121.5 | -131.8 |
| 800 | -168.5 | -156.0 | -177.5 | -193.0 |
| 900 | -235.0 | -216.8 | -248.5 | -271.0 |
| 1,000 | -317.0 | -291.5 | -336.5 | -368.0 |
The 150-grain ELD-X drops the least at every distance past 400 yards, demonstrating the compounding BC advantage of its 0.337 G7 rating. At 700 yards the ELD-X has dropped 107.5 inches versus 131.8 inches for the 175-grain LRX – a 24.3-inch difference that represents significantly different elevation adjustments in the field. At 500 yards the spread is only 8.6 inches, which is manageable with a dialed ballistic solution.
With a 200-yard zero, the 7mm SAUM holds within 2 inches of point of aim from the muzzle to approximately 252 yards. At 300 yards, corrections range from 7.2 to 8.6 inches – a single click of elevation on a typical hunting scope. Inside 400 yards the 7mm SAUM is a highly capable, flat-shooting elk cartridge from a short-action platform.
The 160-grain Partition drops more than the 140-grain AccuBond despite having a higher BC, because its lower starting velocity of 2,885 fps is the dominant factor inside 700 yards. The BC advantage of the Partition only begins closing the trajectory gap past 800 yards – well outside the practical elk hunting range for this cartridge.
Wind Drift (10 mph Full-Value Crosswind)
| Range (Yards) | 140gr AccuBond (in) | 150gr ELD-X (in) | 160gr Partition (in) | 175gr LRX (in) |
|---|---|---|---|---|
| 100 | 0.4 | 0.4 | 0.5 | 0.5 |
| 200 | 1.7 | 1.5 | 1.8 | 1.7 |
| 300 | 3.8 | 3.4 | 4.2 | 3.9 |
| 400 | 6.8 | 6.1 | 7.5 | 7.0 |
| 500 | 10.7 | 9.6 | 11.8 | 10.9 |
| 600 | 15.5 | 13.9 | 17.2 | 15.8 |
| 700 | 21.3 | 19.2 | 23.7 | 21.9 |
| 800 | 28.4 | 25.6 | 31.7 | 29.3 |
| 900 | 36.7 | 33.0 | 40.9 | 37.8 |
| 1,000 | 46.0 | 41.3 | 51.4 | 47.3 |
The 150-grain ELD-X is the clear wind-bucking leader, drifting only 41.3 inches at 1,000 yards versus 51.4 inches for the 160-grain Partition – a 10.1-inch advantage driven by its G7 BC of 0.337. This is the same pattern seen in the 284 Winchester with the same bullet lineup: the ELD-X’s superior BC overwhelms the lower velocity to dominate wind performance at distance.
The 160-grain Partition shows the most wind drift of the four loads at every distance, because its G7 BC of 0.268 is the lowest in the group. At 400 yards in a 10 mph crosswind the Partition drifts 7.5 inches versus 6.1 inches for the ELD-X – a 1.4-inch difference that, while not dramatic, grows to over 10 inches at 1,000 yards.
Inside 300 yards in a 10 mph crosswind, all four loads drift under 4.3 inches – well within the margin of a center-mass hold on deer or elk. The 7mm SAUM’s high velocity keeps wind drift at practical hunting distances competitive with any other short-action 7mm magnum.
Velocity Retention
The expansion thresholds: 1,800 fps for standard soft points; 1,600 fps for bonded designs like the AccuBond and ELD-X; 1,500 fps for monolithics like the Barnes LRX.
| Range (Yards) | 140gr AccuBond (fps) | 150gr ELD-X (fps) | 160gr Partition (fps) | 175gr LRX (fps) |
|---|---|---|---|---|
| 0 | 3,060 | 2,975 | 2,885 | 2,780 |
| 200 | 2,665 | 2,678 | 2,553 | 2,472 |
| 400 | 2,303 | 2,397 | 2,237 | 2,178 |
| 600 | 1,969 | 2,128 | 1,933 | 1,895 |
| 800 | 1,664 | 1,871 | 1,648 | 1,624 |
| 1,000 | ~1,389 | ~1,628 | ~1,384 | ~1,368 |
The 150-grain ELD-X’s BC advantage is dramatically visible in the velocity table. At 1,000 yards the ELD-X retains 1,628 fps – above its bonded bullet expansion floor – while the 140-grain AccuBond has dropped to 1,389 fps and the 160-grain Partition to 1,384 fps. The ELD-X’s velocity at 1,000 yards exceeds what the AccuBond and Partition deliver at that distance despite starting 85 to 175 fps slower at the muzzle.
For the 175-grain LRX, the 1,500 fps monolithic expansion floor is crossed at approximately 830 yards. For the 160-grain Partition using a 1,700 fps standard cup-and-core expansion threshold, that floor is crossed around 540 yards – confirming that the Partition is best suited to shots inside 500 yards where reliable expansion is guaranteed.
Energy Retention
The thresholds: 1,000 ft-lbs for deer, 1,500 ft-lbs for elk and moose.
| Range (Yards) | 140gr AccuBond (ft-lbs) | 150gr ELD-X (ft-lbs) | 160gr Partition (ft-lbs) | 175gr LRX (ft-lbs) |
|---|---|---|---|---|
| 0 | 2,910 | 2,945 | 2,958 | 3,004 |
| 100 | 2,205 | 2,388 | 2,320 | 2,372 |
| 200 | 2,206 | 2,389 | 2,319 | 2,371 |
| 300 | 1,661 | 1,910 | 1,752 | 1,866 |
| 400 | 1,247 | 1,522 | 1,304 | 1,448 |
| 500 | 928 | 1,204 | 972 | 1,129 |
| 600 | 677 | 942 | 711 | 876 |
| 700 | 491 | 728 | 519 | 674 |
| 800 | 352 | 558 | 375 | 513 |
| 900 | 252 | 423 | 271 | 389 |
| 1,000 | 178 | 315 | 193 | 289 |
The energy data defines the honest hunting envelope for the 7mm SAUM. For elk and moose, the 1,500 ft-lbs threshold is maintained as follows:
- 140gr AccuBond: approximately 390 yards
- 150gr ELD-X: approximately 490 yards
- 160gr Partition: approximately 405 yards
- 175gr LRX: approximately 450 yards
The 150-grain ELD-X extends the ethical elk range by 100 yards compared to the AccuBond and Partition – the same dramatic advantage seen in the 284 Winchester article for the same BC difference. For hunters who anticipate shots past 400 yards on elk, the ELD-X is the only load in this lineup that meets the energy standard at 490 yards.
The original article stated “ethical hunting ranges of 500-700 yards on large game like elk.” That claim requires significant qualification: only the 150-grain ELD-X approaches 500 yards on elk (at approximately 490 yards), and none of the loads meet the 1,500 ft-lbs elk standard at 600 yards. The 700-yard claim is not supported by the energy data for any load in this cartridge. For deer, all four loads meet the 1,000 ft-lbs threshold to approximately 450 to 570 yards depending on load.
Terminal Performance Profiles
Hornady ELD-X
The Hornady ELD-X uses a Heat Shield polymer tip that maintains consistent BC across its full flight path and a two-stage expansion process with InterLock bonding preventing 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 above 80 percent.
For the 7mm SAUM, the 150-grain ELD-X is the defining long-range hunting load – the only bullet in the lineup that meets the elk energy standard past 450 yards while maintaining reliable expansion to approximately 1,000 yards from a velocity standpoint. Its BC advantage compounds into a 100-yard extension of ethical elk range versus the next-best options. For open-country mule deer and elk where shots may extend past 400 yards, no other bullet in this lineup matches the ELD-X’s combination of trajectory efficiency and terminal consistency.
Best application: Elk and deer at 100 to 490 yards. The primary recommendation for long-range hunting with the 7mm SAUM.
Nosler AccuBond
The Nosler AccuBond bonds a lead core electrochemically to a tapered copper jacket, preventing core-jacket separation at all impact velocities the 7mm SAUM generates. In gel it expands to 1.5 to 1.8 times original diameter and penetrates 16 to 20 inches with weight retention consistently above 65 percent.
For the 7mm SAUM, the 140-grain AccuBond is the flattest-shooting moderate-range hunting choice – meeting the elk standard to approximately 390 yards with bonded construction that handles close-range shots reliably. Its higher starting velocity gives it a trajectory advantage over the ELD-X inside 400 yards, making it the better choice for hunters who keep shots within that distance. For any shot past 400 yards on elk, the ELD-X’s BC advantage becomes decisive.
Best application: Deer and elk at 75 to 390 yards. Best when trajectory inside 400 yards is the priority.
Barnes LRX
The Barnes LRX is an all-copper boat-tail monolithic bullet expanding via four petals at velocities as low as 1,500 fps, retaining virtually 100 percent of its original weight. In gel it drives 18 to 24 inches with a wide, consistent wound channel and complete structural integrity through heavy bone.
For the 7mm SAUM, the 175-grain LRX meets the elk energy standard to approximately 450 yards – 60 yards farther than the AccuBond, thanks to its combination of heavier mass and higher BC. It is the best choice for elk past 400 yards when the ELD-X is not available, and the primary choice for lead-free hunting zones where California or provincial regulations require copper projectiles. For black bear and hogs inside 300 yards, the LRX’s all-copper construction handles the most difficult bone angles reliably.
Best application: Elk at 75 to 450 yards. Bear, hogs at 50 to 300 yards. Required for lead-free zones.
Nosler Partition
The Nosler Partition uses a dual-core design with a copper partition ensuring the rear section retains mass and continues penetrating regardless of what the front half encounters. In gel it penetrates 16 to 20 inches with consistent mushrooming and near-complete rear-core weight retention.
For the 7mm SAUM, the 160-grain Partition is the best choice for close-range elk and moose inside 300 yards, where its penetration depth and dual-core reliability on angled shots through heavy bone outperform standard cup-and-core designs. Its lower BC makes it less competitive at extended range, but inside timber where shots stay under 250 yards, the Partition’s terminal performance on the toughest game is without equal in this lineup.
Best application: Elk, moose, and black bear at 50 to 350 yards. Top choice for close-range tough-game hunting.
Berger VLD Hunting
The Berger VLD Hunting uses a high-BC hollow-point design with delayed fragmentation – penetrating 2 to 3 inches before the thin jacket initiates rapid expansion, creating a large temporary cavity and broad permanent wound channel. In gel it penetrates 10 to 14 inches with a wide fragmentation zone.
A correction from the original article, which described the VLD Hunting as a bullet for “varmints or thin-skinned game” and suggested it for “predators and varmints” in 140-grain 7mm SAUM loads. The Berger VLD Hunting is a medium and large game hunting bullet in Berger’s hunting product line – not a varmint bullet. For the 7mm SAUM, the VLD Hunting performs best on deer inside 400 yards where impact velocity is sufficient for reliable fragmentation. Its shallow penetration depth makes it unsuitable for elk or large game where deep bone penetration is required.
Best application: Deer and pronghorn at 100 to 400 yards. Not recommended for elk or large, tough game.
Sierra GameKing
The Sierra GameKing is a boat-tail soft point mushrooming consistently to 1.3 to 1.4 times original diameter and penetrating 14 to 18 inches with weight retention in the 60 to 75 percent range.
For the 7mm SAUM, the GameKing in 150 to 160-grain is a reliable, cost-effective deer hunting bullet inside 350 yards on broadside shots through the ribcage. It is not bonded, making it less suitable for steep angles on elk or large bear. For high-volume hunters who practice frequently with their hunting load, the GameKing’s cost advantage over premium bonded options is a practical benefit within its appropriate range.
Best application: Deer at 75 to 350 yards.
Practical Range Recommendations
The 7mm SAUM is a 490-yard elk cartridge with the 150-grain ELD-X, and a 390 to 450-yard elk cartridge with the other hunting loads. It delivers full 7mm Remington Magnum-equivalent performance from a short-action rifle that cycles faster, weighs less, and handles more nimbly in the field.
Whitetail and mule deer: The 150-grain ELD-X meets the 1,000 ft-lbs deer standard to approximately 570 yards; the remaining loads to approximately 450 to 500 yards. For most hunters in realistic field conditions, 450 yards is a responsible practical maximum. Inside 300 yards, all four loads deliver more than 1,700 ft-lbs – more than adequate for deer from any angle.
Elk: The 150-grain ELD-X is the only load that meets the 1,500 ft-lbs elk standard past 450 yards, reaching approximately 490 yards. The 175-grain LRX extends to approximately 450 yards. Inside 350 yards, all four loads deliver more than 1,700 ft-lbs on elk with a comfortable margin. For timber elk hunting where shots stay inside 250 yards, the Nosler Partition 160-grain provides the most reliable penetration on heavy bone.
Black bear and hogs: Inside 275 yards with the Barnes LRX 175-grain or Nosler Partition 160-grain. Both animals require deep penetration through heavy muscle and bone, and the 7mm SAUM’s energy at those distances is more than adequate with the right bullet construction.
Pronghorn: The 140-grain AccuBond at 3,060 fps is the flattest-shooting option with a 200-yard zero window extending to approximately 252 yards – covering the vast majority of pronghorn shots without holdover. All four loads are effective on pronghorn at any practical hunting distance.
For a direct comparison of the 7mm SAUM against the 7mm WSM and 7mm Remington Magnum, the long-range hunting calibers guide covers the full 7mm magnum landscape.
FAQ
How does the 7mm SAUM compare to the 7mm WSM?
The two cartridges are ballistically nearly identical, producing essentially the same muzzle velocities and energy with comparable bullet weights. Both fit standard short-action bolt guns. The 7mm WSM has achieved wider commercial ammunition availability and is supported by a broader selection of factory loads – for hunters who buy rather than handload, the WSM is the more practical choice. The 7mm SAUM uses Remington-branded brass with slightly different case dimensions, and is today primarily supported by handloaders who favor its case geometry for specific precision applications.
What is the maximum ethical elk range with the 7mm SAUM?
With the 150-grain ELD-X, the 1,500 ft-lbs elk threshold is maintained to approximately 490 yards. With the 175-grain LRX it is approximately 450 yards; the AccuBond and Partition reach approximately 390 to 405 yards. In realistic field conditions, 450 yards is a responsible practical maximum for most hunters. Inside 350 yards, all four loads deliver a comfortable elk energy margin.
Is factory ammunition available for the 7mm SAUM?
Limited factory ammunition exists – Remington produced loads, but commercial availability is inconsistent. The 7mm SAUM is best approached as a handloading cartridge today. Hunters who need broad factory ammunition availability should consider the 7mm WSM or 7mm Remington Magnum instead.
How does the 7mm SAUM compare to the 7mm PRC?
The 7mm PRC is a more modern beltless design that pushes high-BC 175-grain bullets to approximately 2,960 fps – faster than the 7mm SAUM’s 2,780 fps with equivalent weight, translating to roughly 250 ft-lbs more muzzle energy and meaningfully longer elk-class range. The 7mm PRC is increasingly well-supported by factory ammunition and production rifles. For shooters considering a new rifle today, the 7mm PRC offers better long-range performance with better commercial support.
What powders work best for handloading the 7mm SAUM?
The 7mm SAUM’s case capacity and short-action geometry suit medium-slow to slow-burning powders. Hodgdon H4350 is the most widely documented choice for 140 to 160-grain loads, producing excellent velocity and consistency. IMR 4350 and IMR 4451 Enduron are reliable alternatives across the weight range. Hodgdon H4831SC and Alliant Reloder 19 work well with 160 to 175-grain loads. Winchester StaBall 6.5 has shown good results with 150-grain loads in some published data. Always start 10 percent below maximum published charges.
What primers does the 7mm SAUM use?
Large rifle magnum primers are standard. The Federal 215 and CCI 250 are most commonly specified in published load data. The Federal GM215M match magnum primer is preferred by precision handloaders for consistent ignition. Standard large rifle primers are not recommended – the SAUM’s slow-burning powder charges require magnum primer ignition for consistent, complete combustion.
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 Remington. 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.
