Based on our bullet sales over the past years, the following rifle calibers are the most popular amongst plains game hunters.
A little bit of history and a few important specifications for the reloader are given on each caliber.

Should your caliber do not appear on these pages, please contact us and we will make an attempt to get the relevant information and add it to this list of calbers.

.222 Remington

Type Rifle

Place of origin USA

Production history

Designer Mike Walker

Designed 1950

Manufacturer Remington

Specifications

Case type Rimless, bottleneck

Bullet diameter .224 in (5.7 mm)

Neck diameter .253 in (6.4 mm)

Shoulder diameter .357 in (9.1 mm)

Base diameter .376 in (9.6 mm)

Rim diameter .378 in (9.6 mm)

Case length 1.700 in (43.2 mm)

.220 Swift

Type Rifle

Place of origin USA

Production history

Designer Winchester

Designed 1935

Manufacturer Winchester

Specifications

Case type Parent case - 6mm Lee Navy

Bullet diameter .224 in (5.7 mm)

Neck diameter .260 in (6.6 mm)

Shoulder diameter .402 in (10.2 mm)

Base diameter .445 in (11.3 mm)

Rim diameter .473 in (12.0 mm)

Case length 2.205 in (56.0 mm)

.22-250 Remington

Type Rifle

Place of origin USA

Production history

Designer Grosvenor Wotkyns, J.E Gebby & J.E. Smith

Designed 1937

Manufacturer Remington

Specifications

Case type Parent case -.250-3000 Savage

Bullet diameter .224 in (5.7 mm)

Neck diameter .254 in (6.5 mm)

Shoulder diameter .414 in (10.5 mm)

Base diameter .469 in (11.9 mm)

Rim diameter .473 in (12.0 mm)

Case length 1.912 in (48.6 mm)

.223 Remington

Type Rifle/varmint

Place of origin USA

Production history

Designer Remington Arms

Designed 1964

Manufacturer Remington

Specifications

Case type - Rimless, bottleneck Parent case -.222 Remington Magnum

Bullet diameter .224 in (5.7 mm)

Neck diameter .253 in (6.4 mm)

Shoulder diameter .354 in (9.0 mm)

Base diameter .376 in (9.6 mm)

Rim thickness .045 in (1.1 mm)

Case length 1.76 in (45 mm)

.243 Winchester

Type Rifle

Place of origin USA

Production history

Designer Winchester

Produced 1955

Manufacturer Winchester

Specifications

Case type Parent case - .308

Bullet diameter .243 in (6.2 mm)

Neck diameter .276 in (7.0 mm)

Shoulder diameter .454 in (11.5 mm)

Base diameter .471 in (12.0 mm)

Rim diameter .473 in (12.0 mm)

Case length 2.045 in (51.9 mm)

25-06 Remington

Type Rifle/Varmint

Place of origin USA

Production history

Designer A.O.Niedner - 1920 as wildcat

Produced 1969

Manufacturer Remington

Specifications

Case type Parent case - 30-06 necked down to .257

Bore Groove Diameter .257"

Neck diameter -

Shoulder diameter -

Base diameter -

Rim diameter -

Max Case Length - 2.494" Trimmed - 2.484"

.264 Winchester Magnum

Type Rifle

Place of origin USA

Production history

Designer Winchester

Designed 1959

Manufacturer Winchester

Specifications

Case type -

Bullet diameter .264 in (6.7 mm)

Neck diameter .299 in (7.6 mm)

Shoulder diameter .491 in (12.5 mm)

Base diameter .515 in (13.1 mm)

Rim diameter .532 in (13.5 mm)

Case length 2.5 in (64 mm)

6.5x55mm (Swedish)

Type Military Rifle

Place of origin Norway / Sweden

Production history

Designed 1891

Produced 1894

Manufacturer Norway/Sweden

Specifications

Case type -

Bullet diameter 6.71 mm (0.264 in)

Neck diameter 7.60 mm (0.299 in)

Shoulder diameter 11.04 mm (0.435 in)

Base diameter 12.20 mm (0.480 in)

Rim diameter 12.20 mm (0.480 in)

Rim thickness 1.50 mm (0.059 in)

Case length 55.00 mm (2.165 in)

.270 Winchester

Type Rifle / Hunting

Place of origin USA

Production history

Designer Winchester

Designed 1923

Manufacturer Winchester

Specifications

Parent case .30-06

Bullet diameter .277 in (7.0 mm)

Neck diameter .308 in (7.8 mm)

Shoulder diameter .441 in (11.2 mm)

Base diameter .470 in (11.9 mm)

Rim diameter .473 in (12.0 mm)

Case length 2.540 in (64.5 mm)

7 mm Remington Magnum

Type Rifle

Place of origin USA

Production history

Designer Remington Arms Company

Designed 1962

Manufacturer Remington

Specifications

Parent case .375 Holland & Holland Magnum

Bullet diameter .284 in (7.2 mm)

Neck diameter .315 in (8.0 mm)

Shoulder diameter .491 in (12.5 mm)

Base diameter .512 in (13.0 mm)

Rim diameter .532 in (13.5 mm)

Case length 2.5 in (64 mm)

7x57mm

Type Rifle

Place of origin Germany

Production history

Designer Mauser

Designed 1893

Variants 7x57mm R (rimmed)

Specifications

Case type Rimless, bottleneck

Bullet diameter 7.24 mm (0.285 in)

Neck diameter 8.25 mm (0.325 in)

Shoulder diameter 10.92 mm (0.430 in)

Base diameter 12.01 mm (0.473 in)

Rim diameter 12.10 mm (0.476 in)

Rim thickness 1.15 mm (0.045 in)

Case length 57.00 mm (2.244 in)

.308 Winchester

Type Rifle

Place of origin USA

Production history

Designer Originally military rifle

Designed 1952

Manufacturer Winchester

Specifications

Case type Rimless, Bottleneck

Parent case .300 Savage

Bullet diameter .308 in (7.8 mm)

Neck diameter .3433 in (8.72 mm)

Shoulder diameter .4539 in (11.53 mm)

Base diameter .4709 in (11.96 mm)

Rim diameter .4728 in (12.01 mm)

Rim thickness .0539 in (1.37 mm)

Case length 2.015 (51.18 mm)

.30-06 Springfield

Type Rifle

Place of origin USA

Production history

Designer United States Military

Designed 1906

Produced 1906

Specifications

Case type Rimless, bottleneck

Parent case .30-03

Bullet diameter .308 in (7.8 mm)

Neck diameter 8.63 mm (0.340 in)

Shoulder diameter 11.20 mm (0.441 in)

Base diameter 11.96 mm (0.471 in)

Rim diameter 12.01 mm (0.473 in)

Rim thickness 1.24 mm (0.049 in)

Case length 63.35 mm (2.494 in)

.300 Winchester Magnum

Type Rifle / Large game

Place of origin USA

Production history

Designer Winchester Repeating Arms Company

Designed 1963

Specifications

Case type Belted, bottleneck

Parent case .375 H&H Magnum

Bullet diameter .308 in (7.8 mm)

Neck diameter .339 in (8.6 mm)

Shoulder diameter .489 in (12.4 mm)

Base diameter .513 in (13.0 mm)

Rim diameter .532 in (13.5 mm)

Rim thickness .049 in (1.2 mm)

Case length 2.62 in (67 mm)

.303 British

Type Rifle

Place of origin United Kingdom

Specifications

Case type Rimmed, bottleneck

Parent case None

Bullet diameter 0.311 in (7.9 mm)

Neck diameter 0.338 in (8.6 mm)

Shoulder diameter 0.401 in (10.2 mm)

Base diameter 0.460 in (11.7 mm)

Rim diameter 0.540 in (13.7 mm)

Rim thickness .064 in (1.6 mm)

Case length 2.222 in (56.4 mm)

.338 Winchester Magnum

Type Rifle

Place of origin USA

Production history

Manufacturer Winchester

Produced 1958

Specifications

Case type Belted, bottleneck

Parent case .375 H&H Magnum

Bullet diameter .338 in (8.58 mm)

Neck diameter .369 in (9.4 mm)

Shoulder diameter .491 in (12.5 mm)

Base diameter .513 in (13.0 mm)

Rim diameter .532 in (13.5 mm)

Case length 2.50 in (64 mm)

.338 Lapua Magnum

Type Rifle

Place of origin Finland

Production history

Designer Lapua

Designed 1989

Specifications

Case type Rimless, bottleneck

Parent case .416 Rigby, .338/416

Bullet diameter 8.58 mm (0.338 in)

Neck diameter 9.46 mm (0.372 in)

Shoulder diameter 13.82 mm (0.544 in)

Base diameter 14.91 mm (0.587 in)

Rim diameter 14.93 mm (0.588 in)

Rim thickness 1.52 mm (0.060 in)

Case length 69.20 mm (2.724 in)

9.3 x 62mm

Type Rifle

Place of origin Germany

Production history

Designer Otto Bock

Designed 1905

Specifications

Case type Rimless, bottleneck

Bullet diameter 9.3 mm (0.366 in)

Neck diameter 9.9 mm (0.39 in)

Shoulder diameter 11.4 mm (0.45 in)

Base diameter 12.1 mm (0.48 in)

Rim diameter 11.9 mm (0.47 in)

Rim thickness 1.3 mm (0.051 in)

Case length 62.0 mm (2.44 in)

.375 H&H Magnum

Type Rifle

Place of origin United Kingdom

Production history

Designer Holland & Holland

Designed 1912

Specifications

Case type Belted

Bullet diameter .375 in (9.5 mm)

Neck diameter .404 in (10.3 mm)

Shoulder diameter .448 in (11.4 mm)

Base diameter .513 in (13.0 mm)

Rim diameter .532 in (13.5 mm)

Rim thickness .220 in (5.6 mm)

Case length 2.850 in (72.4 mm)

Type	Rifle
Place of origin	USA
Production history
Designer	Mike Walker
Designed	1950
Manufacturer	Remington
Specifications
Case type	Rimless, bottleneck
Bullet diameter	.224 in (5.7 mm)
Neck diameter	.253 in (6.4 mm)
Shoulder diameter	.357 in (9.1 mm)
Base diameter	.376 in (9.6 mm)
Rim diameter	.378 in (9.6 mm)
Case length	1.700 in (43.2 mm)

Type	Rifle/varmint
Place of origin	USA
Production history
Designer	Remington Arms
Designed	1964
Manufacturer	Remington
Specifications
Case type - Rimless, bottleneck	Parent case -.222 Remington Magnum
Bullet diameter	.224 in (5.7 mm)
Neck diameter	.253 in (6.4 mm)
Shoulder diameter	.354 in (9.0 mm)
Base diameter	.376 in (9.6 mm)
Rim thickness	.045 in (1.1 mm)
Case length	1.76 in (45 mm)

Type	Military Rifle
Place of origin	Norway / Sweden
Production history
Designed	1891
Produced	1894
Manufacturer	Norway/Sweden
Specifications
Case type	-
Bullet diameter	6.71 mm (0.264 in)
Neck diameter	7.60 mm (0.299 in)
Shoulder diameter	11.04 mm (0.435 in)
Base diameter	12.20 mm (0.480 in)
Rim diameter	12.20 mm (0.480 in)
Rim thickness	1.50 mm (0.059 in)
Case length	55.00 mm (2.165 in)

Type	Rifle / Hunting
Place of origin	USA
Production history
Designer	Winchester
Designed	1923
Manufacturer	Winchester
Specifications
Parent case	.30-06
Bullet diameter	.277 in (7.0 mm)
Neck diameter	.308 in (7.8 mm)
Shoulder diameter	.441 in (11.2 mm)
Base diameter	.470 in (11.9 mm)
Rim diameter	.473 in (12.0 mm)
Case length	2.540 in (64.5 mm)

Type	Rifle / Large game
Place of origin	USA
Production history
Designer	Winchester Repeating Arms Company
Designed	1963
Specifications
Case type	Belted, bottleneck
Parent case	.375 H&H Magnum
Bullet diameter	.308 in (7.8 mm)
Neck diameter	.339 in (8.6 mm)
Shoulder diameter	.489 in (12.4 mm)
Base diameter	.513 in (13.0 mm)
Rim diameter	.532 in (13.5 mm)
Rim thickness	.049 in (1.2 mm)
Case length	2.62 in (67 mm)