The 7mm Remington Ultra Magnum is one of the fastest 7mm rounds you can buy off the shelf. The Underwood 160 grain Nosler AccuBond lists 3,300 fps and 3,870 ft-lbs, and several other loads we carry list over 3,200 feet per second. Those 7mm RUM ballistics come from a huge case and a lot of powder, so the round is built for long shots on big game in open country.
This guide lists the published muzzle figures for our 7mm RUM loads, explains how to read them, and covers what you trade for all that speed.
What Is a 7mm RUM?
Remington introduced the 7mm Ultra Magnum in 2001. It fires a .284-inch bullet from a large, beltless case with a rebated rim. It shares its case design with the .300 Remington Ultra Magnum. It needs a long action with a magnum bolt face.
7mm RUM vs 28 Nosler and 7mm Rem Mag
All three fire the same bullets. The 7mm Rem Mag uses the smallest case and runs slowest. The 28 Nosler and 7mm RUM hold more powder and run faster. The 7mm RUM and 28 Nosler land close to each other in speed. Compare them in our 28 Nosler ballistic data guide.
7mm RUM Ballistics Table
Maker data for every load in our 7mm RUM ammo section:
| Load | Bullet | Grain | Muzzle velocity (fps) | Muzzle energy (ft-lbs) | Pack |
|---|---|---|---|---|---|
| Barnes 7mm RUM VOR-TX Long Range 145 Grain LRX Lead-Free | Barnes LRX polymer tip, lead-free | 145 | 3,350 | 3,613 | 20-round box |
| Remington Premier 7mm RUM 150 Grain Swift Scirocco II | Swift Scirocco II bonded polymer tip | 150 | 3,325 | 3,682 | 20-round box |
| Core-Lokt 7mm RUM 150 Grain Remington Soft Point | Core-Lokt jacketed soft point | 150 | 3,110 | 3,221 | 20-round box |
| 7mm RUM Partition 160 Grain Nosler Custom | Nosler Partition jacketed soft point | 160 | 3,225 | 3,695 | 20-round box |
| Nosler Trophy Grade 7mm RUM 160 Grain AccuBond | Nosler AccuBond bonded polymer tip | 160 | 3,225 | 3,694 | 20-round box |
| Underwood 7mm RUM 160 Grain Nosler AccuBond | Nosler AccuBond polymer tip | 160 | 3,300 | 3,870 | 20-round box |
| 7mm RUM AccuBond Long Range 175 Grain Nosler Trophy Grade | Nosler AccuBond Long Range bonded polymer tip | 175 | 3,040 | 3,590 | 20-round box |
Reading the Numbers
Velocity
Speed in feet per second at the muzzle. The Barnes VOR-TX Long Range 145 grain LRX lists 3,350 fps. That kind of speed means a flat path and less wind drift over normal hunting range.
Energy
Foot-pounds, from speed and bullet weight. The 160 grain loads post the most energy here. The Nosler Custom 160 grain Partition lists 3,225 fps and 3,695 ft-lbs. Treat energy as a way to compare loads, not a promise of results on game.
What the box leaves out
Ballistic coefficient. The Nosler 175 grain AccuBond Long Range lists 3,040 fps and 3,590 ft-lbs, slower at the muzzle than the 160 grain loads. Its long, sleek shape is made to keep speed far out.
Choosing a 7mm RUM Load
- Deer and pronghorn at distance: The Remington Premier 150 grain Scirocco II and Core-Lokt 150 grain fit here. Core-Lokt soft points open fast on deer-sized game.
- Elk and moose: Bonded or tough bullets such as the Nosler Partition and AccuBond.
- Lead-free: The Barnes 145 grain LRX. Check your state’s rules on bullet type.
- Long-range big game: The 175 grain AccuBond Long Range.
The Trade-Offs
A big case means more recoil, more muzzle blast and more heat in the barrel. High-volume shooters will wear barrels sooner than with a 7mm Rem Mag. Ammo choice is narrower too, and stock can come and go. Buy enough from one lot for zero, practice and the hunt.
Barrel length matters more with big magnums. A short barrel gives up real speed. Altitude and temperature also shift 7mm RUM ballistics in the field. Chronograph your own rifle and use a ballistic app before any long shot.
Who Should Pick a 7mm RUM?
This round makes sense for a hunter who shoots in open country, practices at long range and wants the most speed a 7mm can give. It fits elk hunts in big canyons and pronghorn on wide flats. It makes less sense for whitetails in thick woods, where shots are close and a milder round does the job with less kick.
If you are on the fence, look at the 7mm Rem Mag too. It gives up some speed but kicks less, costs less to feed and has far more load choices. Read our 7mm Rem Mag ballistic data guide to compare the two side by side.
Shop 7mm RUM Ammo
See every load in our 7mm RUM ammo section and pick the bullet that fits your game.
Frequently Asked Questions
What is a 7mm RUM?
The 7mm RUM, or 7mm Remington Ultra Magnum, is a large 7mm beltless magnum that Remington introduced in 2001. It fires a .284-inch bullet from a big case with a rebated rim. It needs a long action with a magnum bolt face and is built for long shots on big game.
What is the difference between 7mm RUM and 28 Nosler?
Both are big 7mm magnums that fire the same bullets at similar speeds. The cases come from different makers and are not interchangeable. The 7mm RUM came first, in 2001, and the 28 Nosler followed in 2015. Pick based on your rifle and the loads you can find.
What guns shoot 7mm RUM ammo?
Only rifles chambered for the 7mm Remington Ultra Magnum. They are long-action bolt guns with a magnum bolt face. Check the stamp on the barrel. Never fire 7mm RUM in a 7mm Rem Mag, 28 Nosler or other 7mm rifle.
Is the 7mm RUM too much for deer?
It is more power than deer need at close range, but it works with the right bullet. Choose a bullet that opens at high speed without coming apart, such as a bonded or Partition design. Recoil is stout, so practice enough to place shots well.
