.277 Wolverine
.277 Wolverine | |
---|---|
general information | |
caliber | .277 Wolverine (6.8 × 39mm) |
Sleeve shape |
Bottle neck sleeve , rimless with pull-out groove |
Dimensions | |
Sleeve shoulder ⌀ | 9.04 mm |
Sleeve neck ⌀ | 7.85 mm |
Floor ⌀ | 0.277 inches / 7.04 mm |
Cartridge bottom ⌀ | 9.60 mm |
Sleeve length | 38.9 to 39.2 mm |
Cartridge length | 57.40 mm |
Weights | |
Bullet weight | 4.86-12.96 g |
Technical specifications | |
Speed v 0 | 760 to 850 m / s |
Bullet energy E 0 | 2000 to 2068 y |
Lists on the subject |
The .277 Wolverine (also .277 WLV) cartridge is a medium caliber developed in 2014 by the American company Mad Dog Weapon Systems, Inc. mainly for hunting with semi-automatic or fully automatic AR-15 weapons. There is currently no standardization according to SAAMI (aimed at) or CIP .
development
The aim of the development was to obtain a more powerful cartridge in comparison to the standard 5.56 × 45 mm NATO , which can be used in an AR-15 system with as little structural and financial effort as possible. The widespread cartridge case of the 5.56 × 45 mm NATO (.223 Remington) was used as the basis and combined with the bullet of the 6.8 mm Remington SPC . For this purpose, the case was shortened to 39 mm and the case neck was designed in such a way that the STANAG -4172- magazines can still be used, as can the firing pin . All that is needed to adapt to the larger caliber is a new barrel , which is a big advantage over comparable calibers such as the 6.8 mm Remington SPC or 6.5 mm Grendel .
A similar approach was taken with the .300 AAC Blackout (7.62 × 35 mm) caliber , but the .277 Wolverine stayed with a smaller bullet in favor of greater speed .
ballistics
The .277 Wolverine is available in various loads with bullet weights from 75 gr (4.86 g ) to 130 gr (8.42 g), but there are also special subsonic bullets up to 200 gr (12.96 g) for use with silencer . Although the slimmer cartridge case can hold around 30% less propellant charge than that of the 6.8 mm Remington SPC due to its smaller volume , the ballistic performance is quite comparable. Both calibers achieve similar projectile speeds and energy outputs , with only slight advantages in favor of the 6.8 mm Rem. SPC .
Ballistics in comparison
cartridge | Bullet weight | Barrel length | Muzzle velocity | Projectile energy after 300 yd (274.3 m) |
---|---|---|---|---|
5.56 × 45 mm NATO (M855) | 4 g | 16 inches
(406 mm) |
884 m / s | 785 J. |
.277 Wolverine (90 gr) | 5.8 g | 16 inches
(406 mm) |
838 m / s | 998 J. |
.277 Wolverine (100 gr) | 6.5 g | 16 inches
(406 mm) |
792 m / s | 1022 y |
.277 Wolverine (110 gr) | 7.1 g | 16 inches
(406 mm) |
762 m / s | 1134 J. |
.300 AAC blackout
(110 gr) |
7.1 g | 16 inches
(406 mm) |
701 m / s | 843 y |
.300 AAC blackout
(125 gr) |
8.1 g | 16 inches
(406 mm) |
670 m / s | 873 y |
7.62 × 39 mm | 8 g | 16.5 in
(419 mm) |
701 m / s | 858 J. |
cartridge | Bullet weight | Bullet energy at the muzzle | Projectile energy after 250 yd (229 m) | Muzzle velocity | Bullet speed at 250 yd (229 m) | Floor drop after 250 yd (229 m) |
---|---|---|---|---|---|---|
5.56 × 45 mm NATO | 4 g | 1680 J | 950 J (56.5%) | 914 m / s | 688 m / s (75.3%) | 163 mm |
.300 AAC blackout | 7.1 g | 1829 J | 959 J (52.4%) | 716 m / s | 518 m / s (72.3%) | 330 mm |
.277 WLV (95 gr) | 6.2 g | 1897 J | 1025 y (54.0%) | 785 m / s | 577 m / s (73.5%) | 254 mm |
6.8 mm rem. SPC | 6.2 g | 1934 J. | 1048 years (54.2%) | 792 m / s | 583 m / s (73.6%) | 249 mm |
See also
Web links
Website of Mad Dog Weapon Systems, Inc . (English)
Individual evidence
- ↑ Hrachya H .: .277 Wolverine Cartridge is now in the public domain. In: www.thefirearmblog.com. TheFirearmBlog, April 28, 2017, accessed January 9, 2018 .
- ^ Luke Stephens: AR-Fu: Introducing the .277 Wolverine. In: https://thegagg.com . GaGG.com - The Gun and Gear Guy, accessed January 9, 2018 .
- ↑ Hrachya H .: .277 Wolverine Cartridge is now in the public domain. In: www.thefirearmblog.com. TheFirearmBlog, April 28, 2017, accessed January 9, 2018 .
- ↑ Will Chambers: .277 Wolverine Range and Hunt Report. In: http://ar15hunter.com . AR15Hunter.com, accessed January 9, 2018 .
- ↑ Dick Cupka: .277 Wolverine. In: www.triggertalkradio.com. TriggerTalk Radio, accessed January 9, 2018 .
- ↑ Dick Cupka: .277 Wolverine. In: www.triggertalkradio.com. TriggerTalk Radio, accessed January 9, 2018 .
- ↑ Dick Cupka: .277 Wolverine. In: www.triggertalkradio.com. TriggerTalk Radio, accessed January 9, 2018 .
- ↑ Dick Cupka: .277 Wolverine. In: www.triggertalkradio.com. TriggerTalk Radio, accessed January 9, 2018 .
- ↑ Dick Cupka: .277 Wolverine. In: www.triggertalkradio.com. TriggerTalk Radio, accessed January 9, 2018 .
- ↑ Dick Cupka: .277 Wolverine. In: www.triggertalkradio.com. TriggerTalk Radio, accessed January 9, 2018 .