5.5×48mm
| 5.5×48mm Axis | |
|---|---|
 A 5.5mm 88M Enhanced round in and out of casing | |
| Type | Rifle |
| Place of origin | Granzery |
| Service history | |
| In service | 1971–present |
| Used by | Grozyar-Elesar Security Axis |
| Specifications | |
| Case type | Rimless, bottleneck |
| Bullet diameter | 5.68 mm |
| Neck diameter | 6.40 mm |
| Shoulder diameter | 8.97 mm |
| Base diameter | 9.55 mm |
| Rim diameter | 9.57 mm |
| Rim thickness | 1.13 mm |
| Case length | 47.80 mm |
| Overall length | 57.45 mm |
| Rifling twist | 178 mm or 229 mm |
| Primer type | Small rifle |
The 5.5×48mm Axis (official RDF nomenclature 5.5 Axis, known colloquially as five-five) is an intermediate cartridge developed in Granzery and originally chambered in the FÉMC AK72, but later also used in the FÉMC UHF. It was adopted by Volgaria in 1985 and adopted as the official standardized GESA intermediate cartridge in 1994.
History[edit]
| Rifle | Cartridge | Cartridge weight | Weight of loaded magazine | Max. 10 kilogram ammo. load |
|---|---|---|---|---|
| SZ K72 (1972) | 5.5×48mm | 183 gr (11.8 g) | 20 rd mag @ 0.34 kg | 29 mags @ 9.86 kg for 580 rds |
| SZ K78 (1978) | 5.5×48mm | 183 gr (11.8 g) | 30 rd mag @ 0.49 kg | 20 mags @ 9.86 kg for 600 rds |
| AK-74 (1974) | 5.45×39mm | 162 gr (10.7 g) | 30 rd mag @ 0.55 kg | 18 mags @ 9.2 kg for 540 rds |
| AKM (1957) | 7.62×39mm | 252 gr (16.3 g) | 30 rd mag @ 0.82 kg | 12 mags @ 9.8 kg for 360 rds |