What twist rate does 6mm Remington use?

6mm Remington typically uses a 1:9 twist rate.

What bullet diameter is 6mm Remington?

6mm Remington uses a 0.2433″ (6.18 mm) diameter bullet.

Is 6mm Remington still in production?

6mm Remington is active; typical availability is moderate.

What is 6mm Remington used for?

6mm Remington is primarily used for varmint, hunting, target.

What is 6mm Remington based on?

6mm Remington is derived from the 7x57mm Mauser case.

Rifle · SAAMI

6mm Remington

.244 Remington6mm Rem

Fast, flat-shooting 6mm that lost the marketing war to .243 Winchester.

Caliber: 0.2433″ · 6.18 mm
Introduced: 1955
Case: Rimless
Parent: 7mm Mauser
Primary use: Varmint, Hunting, Target
Status: Active

Velocity3,100–3,500 fps

Energy2,200–2,700 ft·lb

Typical grains75 · 80 · 100 gr

Identity

Introduced: 1955
Type: Rifle
Origin: United States
Inventor: Remington Arms
Manufacturer: Remington Arms
Standard: SAAMI
Status: Active
Availability: Moderate

Build

Case capacity: 55 gr H₂O
Twist (typical): 1:9
Primer: Large Rifle
Case type: Rimless

Pressure & range

Max pressure: 65,000 psi
Eff. range: 400 yd
Max range: 4000 yd
Recoil: 8–12 ft·lb

Ballistics

Real trajectory computed from a representative load — Hornady Superformance 87 gr, 3,350 fps, BC 0.205 G7 · 100 yd zero.

Compare tooverlay up to 2

Range	Velocity	Energy	Drop (in)	Drop (MOA)
0 yd	3349	2166	-1.5″	—
100 yd	3110	1868	+0.1″	0.1
200 yd	2876	1598	-1.9″	-0.9
300 yd	2654	1360	-8.1″	-2.6
400 yd	2439	1149	-19.3″	-4.6
500 yd	2235	965	-36.4″	-6.9
600 yd	2040	804	-60.4″	-9.6
700 yd	1853	663	-92.8″	-12.7
800 yd	1674	541	-135.3″	-16.2
900 yd	1503	436	-190.5″	-20.2
1000 yd	1340	347	-261.0″	-24.9

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 Superformance87 gr · SST · 3,350 fps · BC 0.205 G7Buy now →

Buy links open 6mm Remington 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.

CIP TDCC · verified

Measure	mm	in	✓
Bullet ⌀	6.18	0.243	✓
Neck ⌀	7.01	0.276	✓
Shoulder ⌀	10.90	0.429	✓
Shoulder angle	26°	—	✓
Base ⌀	11.96	0.471	✓
Rim ⌀	12.01	0.473	✓
Belt ⌀	n/a
Rim thickness	1.24	0.049	✓
Neck length	8.91	0.351	≈
Case length	56.72	2.233	✓
Overall length	71.76	2.825	✓

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. 6mm Remington is highlighted below.

Factory loads

In production — 23 active loads across 15 brands. Top 15 shown · see all 25 →.

Brand	Load	Grain	Bullet	FPS	ft·lb	BC
Sierra	Varminter	70	HPBT	3,400	1,796	0.337 G1
Hornady	Superformance	87	SST	3,350	2,168	0.205 G7
Nosler	Ballistic Tip Hunting	95	Ballistic Tip	3,200	2,160	0.195 G7
Federal	V-Shok	80	Nosler Ballistic Tip	3,470	2,139	—
Barnes	VOR-TX	80	TTSX BT	3,470	2,139	—
HSM	Varmint	75	V-MAX	3,450	1,982	—
Black Hills	Varmint	75	V-Max	3,400	1,925	—
Sellier & Bellot	SP	100	SP	3,100	2,133	—
Fiocchi	Standard	100	SP	3,100	2,133	—
Norma	Oryx	100	Oryx Bonded SP	3,100	2,133	—
Nosler	Trophy Grade AccuBond	100	AccuBond	3,100	2,133	—
Federal	Premium Nosler Partition	100	Nosler Partition	3,100	2,133	—
Federal	Fusion	100	Fusion SP	3,100	2,133	—
Sierra	GameKing	100	SBT	3,100	2,133	—
Remington	Core-Lokt	100	PSP	3,100	2,133	—

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

Reloading costestimate cost per round vs factory

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

Powder $/lbCharge (gr)Bullet $/eaPrimer $/eaBrass reusesBrass $/ea

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

Firearms chambered in 6mm Remington

12 models in the database chamber 6mm Remington. Browse all →

Ruger No. 1 Medium Sporter 22-250Ruger No. 1 Varminter 220 SwiftRuger No. 1 Varminter 22-250Remington Model 700 Varmint .22-250 RemRemington Model 40-XB Rangemaster .308 WinRemington Remington 700 Classic 6mm RemRemington 700 Classic 6mm RemRemington Model 788 .308 WinRemington Model 600Remington Arms 700 BDL 6mm Rem 22-inchRemington Model 742 Woodsmaster .30-06 SprgRemington 725 ADL

Lineage

Immediate parent

7mm Mauser

Direct descendants (0)

.22-6mm

Family TreeOpen 6mm Remington in the interactive cartridge family tree↗

Connected reference

Loads25 factory loads for 6mm Remington↗FirearmsFirearms in 6mm Remington↗ToolCompare ballistics↗

History

Introduced as .244 Remington in 1955 to compete with Winchester's .243. Initially marketed as varmint cartridge with slow twist barrels that wouldn't stabilize heavier bullets. Winchester's .243 had faster twist and was marketed for deer. Remington lost the competition badly. Renamed 6mm Remington in 1963 with proper twist but damage was done. Excellent cartridge that never recovered from poor initial marketing.

FAQs

What twist rate does 6mm Remington use?: 6mm Remington typically uses a 1:9 twist rate.
What bullet diameter is 6mm Remington?: 6mm Remington uses a 0.2433″ (6.18 mm) diameter bullet.
Is 6mm Remington still in production?: 6mm Remington is active; typical availability is moderate.
What is 6mm Remington used for?: 6mm Remington is primarily used for varmint, hunting, target.
What is 6mm Remington based on?: 6mm Remington is derived from the 7x57mm Mauser case.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 23 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →