12.7x81SR Breda

Ammunition

10mm Auto (10×25)

12.7x81SR Breda

13.2×99 Hotchkiss

15×106 ZB / Besa

.30-06 US / 7.62×63

.30 M1 carbine (7.62×33)

.300 Whisper / .300 AAC Blackout (7.62×35)

.300 Winchester Magnum (7.62x67mm)

.303 British (7.7x57R)

.338 Lapua Magnum (8.6×70)

.338 Norma Magnum (8.6×64)

.357 Magnum (9x32R)

.357 SIG (9x22mm)

.38 Special (9x29mmR)

.38 S&W Smith & Wesson

4.5x40R SPS underwater

4.6×30 HK Heckler & Koch

.40 Smith & Wesson (10x22mm)

.45 ACP .45 Automatic Colt Pistol (11.43×25)

.45 Colt (.45 Long Colt, .45 LC)

5.45×18 MPTs 7N7

5.45×39 7N6 7N10 7N22 7N24

5.56×45 NATO, .223 Remington

5.8×21 DAP-92-5.8

5.8×42 DAP-87 DPB-10

.5 Vickers class D (.5 Vickers HV, 12.7x120SR)

.50 BMG (12.7×99 Browning Machine Gun)

6.5 Grendel (6.5×39)

6.5x50SR Arisaka

6.5×52 Carcano

6.5×55 Swedish Mauser

6.8 Remington SPC (6.8×43)

7.35×51 Carcano

7.62×17 Type 64, Type 84

7.62×25 TT Tokarev

7.62x38R Nagant

7.62x39mm M43 Soviet Intermediate Cartridge

7.62×41 SP-4 7N36

7.62x51mm NATO / .308 Winchester

7.62×63 PZ, PZA, PZAM “Snake”

7.63×25 Mauser

7.65х20 Longue

.32 ACP / 7.65x17SR / 7.65mm Browning

7.65×21 Luger, 7.65mm Parabellum, .30 Luger

7.65×53 Mauser

7.7×58 Type 99

7.7x58SR Type 92

7.92x33mm Kurz (7.9 PP Kurz, 8mm PP Kurz)

8mm Mauser 7.9x57mm / 7.92mm Mauser

7.9×94 Patr.318

7×57 Spanish Mauser

8x56R M30 Steyr

8×59 M35 Breda

8×63 M32 Bofors

9mm Luger – 9×19 Luger / Parabellum

9×17 Browning Short, 9mm Kurz, .380ACP

9×18 Makarov PM

9×18 Police / Ultra

9×20 Browning Long

9×21 SP-10 SP-11 SP-12

9×23 Largo, 9mm Bergmann-Bayard

9×39 SP-5 SP-6 PAB-9

The 12.7x81SR Breda cartridge was developed during inter-war period as an export version of the .5 Vickers heavy machine gun load. It was used in a number of Italian and Japanese heavy machine guns, and became oboslete after the WW2.

Designation	Bullet weight, g	Muzzle velocity, m/s	Muzzle energy, J	Comments
12.7x81SR	36.5	760	10 540