Rifle · SAAMI

7mm Remington Ultra Magnum

7mm RUM7mm Ultra Mag

Remington's rebated-rim 7mm unbelted magnum, introduced in 2001.

Caliber
0.284″ · 7.214 mm
Introduced
2001
Case
Rebated
Parent
.404 Jeffery
Primary use
Hunting, Long Range
Status
Active
Velocity3,050–3,425 fps
Energy2,884–4,558 ft·lb
Typical grains140 · 160 · 162 gr
Identity
Introduced
2001
Type
Rifle
Origin
United States
Inventor
Remington
Manufacturer
Remington
Standard
SAAMI
Status
Active
Availability
Limited
Build
Case capacity
103 gr H₂O
Twist (typical)
1:9.5
Primer
Large Rifle Magnum
Case type
Rebated
Pressure & range
Max pressure
65,000 psi
Eff. range
800 yd
Max range
1500 yd
Recoil
30–42 ft·lb

Ballistics

Real trajectory computed from a representative load — Hornady Precision Hunter ELD-X 162 gr, 3,230 fps, BC 0.323 G7 · 100 yd zero.

overlay up to 2
RangeVelocityEnergyDrop (in)Drop (MOA)
0 yd32293750-1.5″
100 yd307834080.0″0.0
200 yd29303088-2.1″-1.0
300 yd27872794-8.2″-2.6
400 yd26472520-18.9″-4.5
500 yd25102266-34.5″-6.6
600 yd23772032-55.7″-8.9
700 yd22481818-82.9″-11.3
800 yd21231621-117.2″-14.0
900 yd20011440-159.1″-16.9
1000 yd18831275-209.7″-20.0

Point-mass G7/G1 drag model, standard atmosphere — within ~2% of reference solvers to 1000 yd; real barrels and conditions vary. Open in Ballistic Compare →

Performance

Best for HuntingHornady Precision Hunter ELD-X162 gr · ELD-X · 3,230 fps · BC 0.323 G7Buy now →

Buy links open 7mm Remington Ultra Magnum ammunition at Rivertown Munitions.

Dimensionscase measurements · scale drawing · size vs familiar rounds

Case dimensions — the scale drawing at the top of the page is built from these.

SAAMI · approximate
Measuremmin
Bullet ⌀7.210.284·
Neck ⌀8.050.317·
Shoulder ⌀13.340.525·
Shoulder angle30°·
Base ⌀13.970.550·
Rim ⌀13.560.534~
Belt ⌀n/a
Rim thickness1.270.050~
Neck length7.290.287
Case length72.392.850·
Overall length91.443.600·

Size vs familiar rounds

Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. 7mm Remington Ultra Magnum is highlighted below.

Factory loads

In production — 14 active loads across 7 brands. Top 14 shown.

BrandLoadGrainBulletFPSft·lbBC
RemingtonCore-Lokt PSP140Core-Lokt PSP3,4253,6460.485 G1
RemingtonPremier Core-Lokt Ultra Bonded150Core-Lokt Ultra Bonded3,3003,6260.493 G1
BarnesVOR-TX TTSX BT150TTSX BT3,3003,6260.493 G1
HornadyPrecision Hunter ELD-X162ELD-X3,2303,7520.323 G7
FederalTrophy Bonded Tip160Trophy Bonded Tip3,2003,6370.531 G1
NoslerTrophy Grade AccuBond160AccuBond3,2003,6370.298 G7
RemingtonPremier AccuTip140AccuTip BT3,4253,646
BarnesTTSX140TTSX BT3,4253,646
HornadySuperformance162ELD-X3,2003,683
NoslerTrophy Grade160AccuBond3,2003,637
FederalTrophy Bonded160Trophy Bear Claw3,2003,637
Black HillsGold162ELD-X3,1003,456
NormaOryx170Oryx SP3,0253,454
RemingtonCore-Lokt175Core-Lokt PSP3,0253,555

Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.

Suitable powders

8 reloading powders listed for 7mm Remington Ultra Magnum, fastest to slowest. Cross-reference in the finder →

Reloading costestimate cost per round vs factory

Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.

Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.

Firearms chambered in 7mm Remington Ultra Magnum

2 models in the database chamber 7mm Remington Ultra Magnum. Browse all →

Remington Arms 700 XCR Long Range .300 Rem Ultra Mag 26-inchRemington Arms 700 Sendero .300 Rem Ultra Mag 26-inch

Lineage

Immediate parent
Family TreeOpen 7mm Remington Ultra Magnum in the interactive cartridge family tree

Connected reference

History

Introduced in 2001 as part of Remington's Ultra Magnum family, which also included .300 RUM and .338 RUM. The rebated rim allows use of a standard magnum bolt face despite the large case body. The 7mm RUM delivers impressive long-range ballistics but the brutal recoil and limited factory load selection have constrained its popularity.

FAQs

What twist rate does 7mm Remington Ultra Magnum use?
7mm Remington Ultra Magnum typically uses a 1:9.5 twist rate.
What bullet diameter is 7mm Remington Ultra Magnum?
7mm Remington Ultra Magnum uses a 0.284″ (7.214 mm) diameter bullet.
Is 7mm Remington Ultra Magnum still in production?
7mm Remington Ultra Magnum is active; typical availability is limited.
What is 7mm Remington Ultra Magnum used for?
7mm Remington Ultra Magnum is primarily used for hunting, long range.
What is 7mm Remington Ultra Magnum based on?
7mm Remington Ultra Magnum is derived from the .404 Jeffery (rebased) case.
What are the best powders for 7mm Remington Ultra Magnum?
Reloading powders commonly listed for 7mm Remington Ultra Magnum include N170, Reloader 25, Reloader 26, LRT, among 8 suitable options.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 14 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →