6 x 52 R BB2 Load Data & Reloading Guide

Rifle

Also known as: 6x52R BB2, 6×52mm R BB2, 6mm BB2

About 6 x 52 R BB2

The 6 x 52 R BB2 caliber is a specialized cartridge with a unique history rooted in European hunting traditions. Originally developed in Austria in the early 20th century, this cartridge was designed for combination guns often used in hunting. While not as widely recognized as other calibers, it carved a niche for hunters seeking versatility in a rimmed cartridge suitable for both rifle and shotgun barrels. Its legacy persists in bespoke firearms used primarily by enthusiasts and collectors who appreciate traditional hunting cartridges.

This round features a rimmed case design, facilitating its use in break-action rifles and drillings. The 6mm bullet diameter is optimal for medium game hunting, particularly in European settings where its precision and adaptability have kept it relevant. Typical factory loadings include bullet weights ranging from 75 to 100 grains, with reloaders often opting for similar weights to maximize the caliber's ballistic potential. The cartridge balances a modest case capacity with sufficient velocity and energy, making it an exemplary choice for reloaded ammunition.

Ballistically, the 6 x 52 R BB2 offers moderate performance with velocities around 2600 to 2800 feet per second depending on bullet weight and powder charge. It is well-suited for ranges within 200 yards, offering flat shooting capabilities and consistent accuracy. For reloaders, the option to fine-tune loads with various bullet types like soft points or ballistic tips can enhance its effectiveness on different game species.

For enthusiasts of ammunition reloading, the 6 x 52 R BB2 presents several advantages, including the ability to tailor loads to specific hunting or target shooting needs. Its rimmed design increases reliability in specific firearm platforms, while the moderate pressure levels provide a forgiving environment for experimentation and load development. In summary, the 6 x 52 R BB2 remains a viable, if specialized, option for reloaders seeking a blend of tradition and performance in their hunting and shooting activities.

Technical Drawing

6 x 52 R BB2 cartridge dimensions, C.I.P.L1 = 40.83 mm, L2 = 44.4 mm, L3 = 52 mm, L6 = 69 mmL1 = 40.83 mmL2 = 44.40 mmL3 = 52.00 mmL6 = 69.00 mm36.0°

Based on C.I.P., the max. allowed case length is 2.047 in / 52.00 mm, the max. cartridge length is 2.717 in / 69.00 mm, and the max. allowed pressure is 47,863 PSI / 3,300 bar.

Technical Specifications

Maximum Pressure:47863 PSI / 3300 bar
Case Volume:40 Grains of Water
Primer Size:Large Rifle (LR)
Safety Standard:C.I.P. (Datasheet)
Bore Area:29.25 mm²
Barrel Diameter:0.243" / 6.2 mm
L1:1.607" / 40.83 mm
L2:1.748" / 44.40 mm
L3:2.047" / 52.00 mm
L6:2.717" / 69.00 mm

Start Calculating to Develop your own Load Data for 6 x 52 R BB2

Use our professional ballistics calculator to develop safe and accurate load recipes for 6 x 52 R BB2.

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Standard Load Data — 6 x 52 R BB2

Select your desired cartridge and bullet weight below to access the corresponding load table. From there, you can choose any listed load recipe and transfer it directly into the ballistics calculator for further refinement, optimization, and precision tuning.

All
70 gr
75 gr
80 gr
82 gr
85 gr
88 gr
89 gr
90 gr
95 gr
97 gr
100 gr
105 gr
Swift logo

.243 | 90gr | Swift Scirocco

BC G1: 0.419
70 powders378 loads
Hasler logo

.243 | 80gr | Hasler Hunting

BC G1: 0.36
68 powders396 loads
Rhino Bullets logo

.243 | 70gr | Rhino Penetrator

BC G1: 0.331
65 powders382 loads
Sierra logo

.243 | 95gr | Sierra Tipped MatchKing

BC G1: 0.5BC G7: 0.246
73 powders381 loads
Sellier & Bellot logo

.243 | 100gr | Sellier & Bellot SP

BC G1: 0.245
74 powders364 loads
MEN logo

.243 | 100gr | MEN FMJ

BC G1: 0.35
73 powders354 loads
Barnes logo

.243 | 95gr | Barnes X S

BC G1: 0.398
64 powders301 loads
Peregrine logo

.243 | 82gr | Peregrine VLR-4

BC G1: 0.434
69 powders415 loads
Peregrine logo

.243 | 97gr | Peregrine Glider GRM

BC G1: 0.54
75 powders411 loads
Remington logo

.243 | 75gr | Remington HP V-Max

BC G1: 0.325
69 powders398 loads
Lehigh Defense logo

.243 | 85gr | Lehigh Defense Controlled Chaos

BC G1: 0.318
68 powders395 loads
Virtus logo

.243 | 89gr | Merlin Virtus

BC G1: 0.328
70 powders393 loads
Barnes logo

.243 | 75gr | Barnes BND SPIT-FIRE

BC G1: 0.341
66 powders391 loads
Cutting Edge logo

.243 | 88gr | CutEdge MTH

BC G1: 0.445
66 powders389 loads
Nosler logo

.243 | 95gr | Nosler Ballistic Silver Tip

BC G1: 0.379
74 powders387 loads
Berger logo

.243 | 90gr | Berger BT M T

BC G1: 0.409BC G7: 0.21
72 powders386 loads
Nosler logo

.243 | 90gr | Nosler AccuBond

BC G1: 0.376BC G7: 0.19
70 powders384 loads
Reichenberg logo

.243 | 90gr | Reichenberg HDB Universal

BC G1: 0.234
73 powders383 loads
Hornady logo

.243 | 85gr | Hornady Interbond

BC G1: 0.395
66 powders381 loads
Sierra logo

.243 | 85gr | Sierra VarmintKing

BC G1: 0.315
68 powders379 loads
Hornady logo

.243 | 105gr | Hornady A-MAX

BC G1: 0.5
78 powders374 loads
Barnes logo

.243 | 105gr | Barnes Match Burner BT

BC G1: 0.511BC G7: 0.255
78 powders372 loads
Frontier Bullets logo

.243 | 85gr | Frontier PH HPFB

BC G1: 0.249
63 powders371 loads
Rhino Bullets logo

.243 | 95gr | Rhino Solid Shank

BC G1: 0.358
72 powders369 loads

Frequently Asked Questions

The maximum pressure for 6 x 52 R BB2 is 47,863 psi | 3,300 bar.

6 x 52 R BB2 typically uses a Large Rifle (LR) primer.

The case capacity of 6 x 52 R BB2 is approximately 40 grains of water (H₂O).