Today we look at something relatively new on the market, the FN Five-Seven
| Calibre | 5.7x28mm |
| Operating principle | Delayed blowback |
| Overall length | 208mm (8.2″) |
| Weight (empty magazine) | 662 g (1.46 lb) |
| Barrel length | 112.5mm (4.41″) |
| Trigger mechanism | Single Action Only |
| Firing mode | Single shot |
| Magazine capacity | 20 rounds |
| Manual safety | Yes |
| Maximum effective range | 50m |
| Receiver | Polymer |
Posted by daddybear71 on June 20, 2015
https://daddybearsden.com/2015/06/20/gun-data-of-the-day-day-12/
Today, we pull out one of the longest running arguments I’ve known, 5.56 versus .223
| Case type | Rimless, bottleneck | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bullet diameter | 5.70 mm (0.224 in) | |||||||||||||||
| Neck diameter | 6.43 mm (0.253 in) | |||||||||||||||
| Shoulder diameter | 9.00 mm (0.354 in) | |||||||||||||||
| Base diameter | 9.58 mm (0.377 in) | |||||||||||||||
| Rim diameter | 9.60 mm (0.378 in) | |||||||||||||||
| Rim thickness | 1.14 mm (0.045 in) | |||||||||||||||
| Case length | 44.70 mm (1.760 in) | |||||||||||||||
| Overall length | 57.40 mm (2.260 in) | |||||||||||||||
| Case capacity | 1.85 cm3 (28.5 gr H2O) | |||||||||||||||
| Rifling twist | 178 mm or 229 mm (1 in 7 in or 9 in, originally 1 in 14 in) | |||||||||||||||
| Primer type | Small rifle | |||||||||||||||
| Maximum pressure (EPVAT) | 430.00 MPa (62,366 psi) | |||||||||||||||
| Maximum pressure (SCATP 5.56) | 380.00 MPa (55,114 psi) | |||||||||||||||
| Ballistic performance | ||||||||||||||||
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Test barrel length: 508 mm (20.0 in)
| Case type | Rimless, bottleneck | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bullet diameter | 0.224 in (5.7 mm) | |||||||||||||||||||||||
| Neck diameter | 0.253 in (6.4 mm) | |||||||||||||||||||||||
| Shoulder diameter | 0.354 in (9.0 mm) | |||||||||||||||||||||||
| Base diameter | 0.376 in (9.6 mm) | |||||||||||||||||||||||
| Rim diameter | 0.378 in (9.6 mm) | |||||||||||||||||||||||
| Rim thickness | 0.045 in (1.1 mm) | |||||||||||||||||||||||
| Case length | 1.76 in (45 mm) | |||||||||||||||||||||||
| Overall length | 2.26 in (57 mm) | |||||||||||||||||||||||
| Rifling twist | 1 in 12 inch (military style rifles use 1:7 to 1:10 to stabilize longer bullets) | |||||||||||||||||||||||
| Primer type | Small rifle | |||||||||||||||||||||||
| Maximum pressure (SAAMI) | 55,000 psi (380 MPa) | |||||||||||||||||||||||
| Maximum pressure (CIP) | 62,366 psi (430.00 MPa) | |||||||||||||||||||||||
| Maximum CUP | 52000 CUP | |||||||||||||||||||||||
| Ballistic performance | ||||||||||||||||||||||||
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| Test barrel length: 24 inches (61 cm) |
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Posted by daddybear71 on June 19, 2015
https://daddybearsden.com/2015/06/19/gun-data-for-the-day-day-11/
Here’s some information on an old warhorse, the M16A2:
| Manufacturers | Colt Manufacturing and Fabrique Nationale Manufacturing Inc. |
| Length | 39.63 inches (100.66 centimeters) |
| Weight (without magazine and sling) | 7 pounds, 8 ounces (3.40 kilograms) |
| Weight (with loaded 30 round magazine and sling) | 8 pounds, 13 ounces (4.00 kilograms) |
| Bore Diameter | 5.56mm (.233 inches) |
| Rifling | Right-hand twist, 6 grooves, 1 turn in 7 inches |
| Maximum Range | 3,600 meters |
| Maximum Effective Range (Point Target) | 602 yards (550 meters) |
| Maximum Effective Range (Area Target) | 875 yards (800 meters) |
| Muzzle Velocity | 3,100 feet (945.5 meters) per second |
| Rate of Fire (Cyclic) | 700-900 rounds per minute |
| Rate of Fire (Sustained) | 12-15 rounds per minute |
| Rate of Fire (Semiautomatic) | 45 rounds per minute |
| Rate of Fire (Burst) | 90 rounds per minute |
| Magazine capacity | 30 rounds |
| Unit Replacement Cost | $586 |
Posted by daddybear71 on June 17, 2015
https://daddybearsden.com/2015/06/17/gun-data-for-the-day-day-9/
This falls under the ‘maintenance, repair, and overhaul, or refurbishing” language of the proposed ITAR changes.
Plus, I need this, for reasons.
Posted by daddybear71 on June 15, 2015
https://daddybearsden.com/2015/06/15/gun-data-for-the-day-day-7/
Let’s get some performance data on commonly available XM-193F ammunition in 5.56mm.
Posted by daddybear71 on June 13, 2015
https://daddybearsden.com/2015/06/13/gun-data-for-the-day-day-5-2/
Who you gonna call?
Posted by daddybear71 on June 12, 2015
https://daddybearsden.com/2015/06/12/gun-data-for-the-day-day-5/
You love ’em, you miss ’em, you wish you could have one of your own. Ladies and gentlemen, it’s the Browning M-2 .50 machine gun, or as it’s known to many, the Ma Deuce:
Posted by daddybear71 on June 11, 2015
https://daddybearsden.com/2015/06/11/gun-data-for-the-day-day-4/
Well, not exactly a gun, but it is quite a weapon. Let’s get apocalyptic and talk about the W87 nuclear warhead:
| Yield | 300 Kilotons (Upgradable to 475 Kt) |
|---|---|
| Weight | Warhead: 440 – 600 lb; RV/Warhead: >800 lb ? |
| Length | 68.9 in |
| RV Base Diameter | 21.8 in |
| Nose Half Angle | 8.2 degrees |
| Number In Service | 525 |
Posted by daddybear71 on June 10, 2015
https://daddybearsden.com/2015/06/10/gun-data-of-the-day-day-3/
For those of you who didn’t choose the BRRRTTTT life, the BRRRTTTT life chose you, let’s look at the GAU-8:
| number of barrels | 7 |
| Feed: | Linkless feed system |
| calibre | 30 mm |
| Ammo types | PGU-14/B API Armor Piercing Incendiary [DU] PGU-13/B HEI High Explosive Incendiary PGU-15/B TP Target Practice |
| muzzle velocity | 1067 meters/second |
| Armor penetration | 69mm at 500 meters 38mm at 1000 meters |
| Maximum Range | over 1,250 meters |
| Accuracy | 5mil, 80 percent 80% of rounds fired at 4,000ft hit within a 20ft radius |
| cannon weight | 281 kilograms |
| cannon length | 6.40 meters |
Posted by daddybear71 on June 9, 2015
https://daddybearsden.com/2015/06/09/gun-data-for-the-day-day-2/
Today, we look at the Barrett MRAD:
.338 Lapua Magnum
.300 Winchester Magnum
.308 Winchester
Bolt Action Repeater
Tungsten Grey, Flat Dark Earth, OD Green, Multi-Role Brown and Black
21.75” (55.24 cm) 20 MOA
Min 11.7 lbs (5.3 kg)
Max 14.72 lbs (6.68 kg)
.338 LM – 20” (51 cm), 24” (62 cm) or 26” (66 cm)
.300 Win Mag – 24” (62 cm)
.308 Win – 17” (43.18 cm), 22” (56 cm)
Black
.338 LM – 1 in 9.35” (24 cm)
.300 WM – 1 in 10” (25 cm)
.308 Win – 1 in 10” (25 cm)
26” Barrel – 49.4” (125.5 cm)
17” Barrel – 31.75” (80.6 cm)
10 Rounds
Posted by daddybear71 on June 8, 2015
https://daddybearsden.com/2015/06/08/gun-data-for-the-day-day-1/
DaddyBear’s Den 