.585 Nyati
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| .585 Nyati | ||
|---|---|---|
| Type | Rifle | |
| Place of origin | ||
| Production history | ||
| Designer | Ross Seyfried | |
| Specifications | ||
| Parent case | .577 Nitro | |
| Bullet diameter | .585 in (14.9 mm) | |
| Rim diameter | 0.640 in (16.3 mm) | |
| Case length | 2.800 in (71.1 mm) | |
| Ballistic performance | ||
| Bullet weight/type | Velocity | Energy |
| 750 gr (49 g) Solid | 2,466 ft/s (752 m/s) | 10,130 ft·lbf (13,730 J) |
| Source: Accurate Reloading [1] | ||
The .585 Nyati is a shoulder-fired rifle cartridge. Nyati (n-ya-te) means Cape Buffalo in many African languages such as Swahili. The .585 Nyati can generate 10,000 lb·ft (13,600 N·m) of muzzle energy. This places it at or near the top of the list for most powerful cartridges that can be chambered in a rifle that can still be carried afield.
Contents |
[edit] History
The .585 Nyati was developed by Ross Seyfried. He was motivated by the desire to create a rifle with tremendous stopping power at a fraction of the cost of expensive double guns such as the various Nitro Express rounds. [2]
The rims were turned from .577 Nitro brass and the case blown out straight to allow formation of enough of a shoulder for headspace purposes. Brass formed by this method, during the developmental phase, had a relatively weak case head due to the fact that the parent .577 Nitro case was designed for a double rifle which supports the case head all the way to the rim. In a bolt action rifle, a portion of the case head is unsupported and requires more strength in that area.
[edit] Recoil
Sensible weights for a .585 Nyati range from 12 to 16 lb (7 kg). Recoil in a 12 lb (5 kg) rifle would be severe. 10 lb (5 kg) rifles have been built, but the recoil from full power loads would be very difficult to manage, perhaps impossible for most shooters. For example, typical bolt-action hunting rifles weigh 7-9 lb when scoped. [3] In typical calibers such as .308, .270, or .30-06, recoil ranges from 15-20 ft·lbf. [4] By comparison, a 12 lb (5 kg) rifle in .585 Nyati using a 750 gr bullet at 2466 fps would have 158 lb·ft (214 N·m) of recoil.[1]
[edit] See also
[edit] References
- ^ a b 585 Nyati at Accurate Reloading web site
- ^ Historical .585 Nyati Information
- ^ Rifle weight by Chuck Hawks
- ^ Rifle recoil by Chuck Hawks
