NS infantry discussion thread. Mark II

[Imperializt Russia]

I know the mythbusters bent a barrel 180 and the bullet only lost 15% of it's speed.

And the Germans bent a barrel 30 and the bullets came out in tiny pieces.

Well, it has to be a very delicately-made piece of equipment. The forces imposed by bullets travelling down a normal rifle barrel are already pretty worrying. Both the bullet and barrel, and also the actual design of the barrel, have to be very precise.

I thought that Krummlauf had worked.

[Bezombia]

And the Germans bent a barrel 30 and the bullets came out in tiny pieces.

Well, it has to be a very delicately-made piece of equipment. The forces imposed by bullets travelling down a normal rifle barrel are already pretty worrying. Both the bullet and barrel, and also the actual design of the barrel, have to be very precise.

I thought that Krummlauf had worked.

"Another problem besides the short life-span was that the bending caused the bullets to shatter and exit the barrel in multiple fragments, producing an unintended shotgun effect. As a result, weapons designers experimented with small vent holes drilled into the Krummlauf's barrel in order to reduce pressure and recoil, allowing the discharged bullets' built-up gases to be released to slow the bullet's velocity as it turned to exit the barrel. Nevertheless, the Krummlauf's lifespan remained the same."

-Wikipedia.


Anyway, found more about the flaccid PPSh-41.
http://www.ppsh41.com/serge3.htm

[Triplebaconation]

Not really unique or even that weird.

[Yes Im Biop]

And the Germans bent a barrel 30 and the bullets came out in tiny pieces.

Well, it has to be a very delicately-made piece of equipment. The forces imposed by bullets travelling down a normal rifle barrel are already pretty worrying. Both the bullet and barrel, and also the actual design of the barrel, have to be very precise.

I thought that Krummlauf had worked.

That's the word I was trying to remember

[Mozria]

Here's the rather mediocre rifle cartridge that I designed for my upcoming WWII-era RP:

Cartridge, Caliber 7.88 mm, Schnaussen-Rimmer M.23

Case Type: Bottleneck, rimless (brass)
Bullet Diameter: 8 mm
Bullet Length: 32 mm
Seating Depth: 7.60 mm
Neck Diameter: 9.45 mm
Shoulder Diameter: 12.30 mm
Base Diameter: 12.60 mm
Rim Diameter: 11.40 mm
Rim thickness: 1.20 mm
Case Length: 62 mm
Cartridge Length: 86.40 mm
Case Capacity: 71.50 grains
Case Load: 60 grains
Rifling Twist: 1:350 mm
Projectile Type/Weight: Schnaussen-Rimmer M.23 (copper-jacketed ball), 195 gr.
Primer Type: Schnaussen-Rimmer M.19 Rifle
Maximum Pressure: ~41,700 CUP / 47,000 psi
Velocity at Muzzle: ~800 meters/second
Muzzle Energy: ~3,700 joules *
100 meters: ~3,500 joules *
200 meters: ~3,100 joules *
300 meters: ~2,600 joules *

* Test barrel length: 750 millimeters

(Image)

Schnaussen-Rimmer M.23 Projectile

Bullet Diameter: 8 mm
Bullet Length: 32 mm
Nose Length: 18 mm
Meplat Diameter: 1 mm
Boat-Tail Length: 6 mm
Base Diameter: 6 mm
Bullet Weight: 195 grains
Construction: Copper-jacketed lead core, solid cross-section
G1 Ballistic Coefficient:
Mach 0.5: 0.47
Mach 1.0: 0.39
Mach 1.5: 0.49
Mach 2.0: 0.52
Mach 2.5: 0.54
Mach 3.0: 0.57
G7 Ballistic Coefficient:
Mach 0.5: 0.28
Mach 1.0: 0.30
Mach 1.5: 0.26
Mach 2.0: 0.26
Mach 2.5: 0,27
Mach 3.0: 0.27

Link to the actual bullet design?

http://www.geoffrey-kolbe.com/cgi-bin/drag_working.cgi?diameter=7.88&length=32&nose=18&meplat=1&drive_band=7.88&base_diameter=6&angle=&boat_tail=6&secant_radius=&unit_length=mm.&bullet_name=Scnaussen-Rimmer+M.23&weight=&weight_unit=grains&density=11.4&custom_density=&boundary_layer=L%2FT

[DnalweN acilbupeR]

Replacing them as your standard sidearm or redefining what your pistol is there to do?
Cost, giggle switch, weight etc.

Completely replacing pistols as a sidearm. W/ giggle switch. IIRC - and correct me if I'm wrong - some RL countries have historically used machine pistols as their service sidearm, so there shouldn't be any problem with that. A RL B+T MP9 is 1.4 kg unloaded. IMO bulk-wise it's not much larger than a full sized pistol:





Riflemen wouldn't have them, so the reasoning behind it is that the guys that will would kind of rely on them as their primary weapon for short-range encounters (e.g. guys wielding grenade or rocket launchers, etc.) , so they'd really use something more than a pistol to rely on that is, however, still compact. Whereas with riflemen weight-wise 1.4 kg (unloaded MP9) will get you at least 2 extra rifle mags. Folding stock, big mags, better accuracy, higher power are some of the advantages.

Perhaps for soldiers relying on a pistol-caliber weapon as their sole / primary weapon I can have smth more "full-fledged" / SMG/carabine-ish like a MP5 in 7.62 Tok (e.g. CQB, vehicle crews, etc.) . Yeah, I probably will. Because MP5 s are fucking cool.

[Purpelia]

I need some help understanding trigger mechanisms. Basically I want to figure out how select fire weapons that use a striker work. And I am hitting a brick wall when it comes to finding good examples. There are plenty of brilliant drawings and videos of hammer fired weapons (like the AK) or of semi-auto only handguns that use a striker (like the Glock). But I can't find anything even half decent that describes a striker fired select fire weapon that fires from a closed bolt.

So any links would be appreciated.

[Blackledge]

One might make the argument that someone needing something more than a pistol could just use a carbine, while someone needing less would do fine with a pistol.

[Tule]

Completely replacing pistols as a sidearm. W/ giggle switch. IIRC - and correct me if I'm wrong - some RL countries have historically used machine pistols as their service sidearm, so there shouldn't be any problem with that. A RL B+T MP9 is 1.4 kg unloaded. IMO bulk-wise it's not much larger than a full sized pistol:





Riflemen wouldn't have them, so the reasoning behind it is that the guys that will would kind of rely on them as their primary weapon for short-range encounters (e.g. guys wielding grenade or rocket launchers, etc.) , so they'd really use something more than a pistol to rely on that is, however, still compact. Whereas with riflemen weight-wise 1.4 kg (unloaded MP9) will get you at least 2 extra rifle mags. Folding stock, big mags, better accuracy, higher power are some of the advantages.

Perhaps for soldiers relying on a pistol-caliber weapon as their sole / primary weapon I can have smth more "full-fledged" / SMG/carabine-ish like a MP5 in 7.62 Tok (e.g. CQB, vehicle crews, etc.) . Yeah, I probably will. Because MP5 s are fucking cool.

Your soldiers shouldn't rely on pistol caliber weapons bigger than a sidearm. Compact assault rifles are lightweight enough and don't fire ammo that is any heavier.

The MP9 is a decent sidearm, but It could be a little more compact. something like the CZ-75 Auto, lercker pistol, Skorpion or Beretta 93 Raffica would be a better choice IMO.

[Nua Corda]

Completely replacing pistols as a sidearm. W/ giggle switch. IIRC - and correct me if I'm wrong - some RL countries have historically used machine pistols as their service sidearm, so there shouldn't be any problem with that. A RL B+T MP9 is 1.4 kg unloaded. IMO bulk-wise it's not much larger than a full sized pistol:





Riflemen wouldn't have them, so the reasoning behind it is that the guys that will would kind of rely on them as their primary weapon for short-range encounters (e.g. guys wielding grenade or rocket launchers, etc.) , so they'd really use something more than a pistol to rely on that is, however, still compact. Whereas with riflemen weight-wise 1.4 kg (unloaded MP9) will get you at least 2 extra rifle mags. Folding stock, big mags, better accuracy, higher power are some of the advantages.

Perhaps for soldiers relying on a pistol-caliber weapon as their sole / primary weapon I can have smth more "full-fledged" / SMG/carabine-ish like a MP5 in 7.62 Tok (e.g. CQB, vehicle crews, etc.) . Yeah, I probably will. Because MP5 s are fucking cool.

Need an automatic sidearm?

Why not PT-790?



Gas-delayed blowback for soft recoil and compatibility with a wide variety of load pressures. Single, 3-burst and full auto firing modes, with optional stock/annex holster, ported barrel and transparent grip panels. 9mm, 10x22mm ANTO or 10mm Auto.

[DnalweN acilbupeR]

snip

this is too cool

but really, the transparent grip is too *operator* for me.

[Tule]

[DnalweN acilbupeR]

(Image)

this is sexual

[Nua Corda]

snip

this is too cool

but really, the transparent grip is too *operator* for me.

I mean, you can get them with solid ones, but why? It doesn't change anything, except that you can check your ammo easily...


And ick, Beretta...

[The Archangel Conglomerate]

Bah! Is only acceptable machine pistol!

[Bratislavskaya]

Need an automatic sidearm?

Why not PT-790?

(Image)

Gas-delayed blowback for soft recoil and compatibility with a wide variety of load pressures. Single, 3-burst and full auto firing modes, with optional stock/annex holster, ported barrel and transparent grip panels. 9mm, 10x22mm ANTO or 10mm Auto.

Can I use these for my NS military (in 7.62x25 or 9x18 or some other eastern European chambering) because these look epic!

[Nua Corda]

Need an automatic sidearm?

Why not PT-790?

(Image)

Gas-delayed blowback for soft recoil and compatibility with a wide variety of load pressures. Single, 3-burst and full auto firing modes, with optional stock/annex holster, ported barrel and transparent grip panels. 9mm, 10x22mm ANTO or 10mm Auto.

Can I use these for my NS military (in 7.62x25 or 9x18 or some other eastern European chambering) because these look epic!

Sure!

The 9x19 chambering can handle Soviet 9mm +P+ loads

[Bratislavskaya]

Can I use these for my NS military (in 7.62x25 or 9x18 or some other eastern European chambering) because these look epic!

Sure!

The 9x19 chambering can handle Soviet 9mm +P+ loads

Thanks, can I mod the image? I'll give full credit to you of course.

[Nua Corda]

Sure!

The 9x19 chambering can handle Soviet 9mm +P+ loads

Thanks, can I mod the image? I'll give full credit to you of course.

By all means.

What mods were you planing to make, out of curiosity?

[Bezombia]

Need an automatic sidearm?

Why not PT-790?



Gas-delayed blowback for soft recoil and compatibility with a wide variety of load pressures. Single, 3-burst and full auto firing modes, with optional stock/annex holster, ported barrel and transparent grip panels. 9mm, 10x22mm ANTO or 10mm Auto.

No threaded barrel for attaching of silencers and other muzzle devices?

[Nua Corda]

Need an automatic sidearm?

Why not PT-790?

(Image)

Gas-delayed blowback for soft recoil and compatibility with a wide variety of load pressures. Single, 3-burst and full auto firing modes, with optional stock/annex holster, ported barrel and transparent grip panels. 9mm, 10x22mm ANTO or 10mm Auto.

No threaded barrel for attaching of silencers and other muzzle devices?

[Bratislavskaya]

Thanks, can I mod the image? I'll give full credit to you of course.

By all means.

What mods were you planing to make, out of curiosity?

Change the writing, add a licensed production mark if I'm allowed, or something symbolizing my nations military.

[Bezombia]

No threaded barrel for attaching of silencers and other muzzle devices?

Much better. PCAPs I presume/hope?

[Coltarin]

Need an automatic sidearm?

Why not PT-790?

(Image)

Gas-delayed blowback for soft recoil and compatibility with a wide variety of load pressures. Single, 3-burst and full auto firing modes, with optional stock/annex holster, ported barrel and transparent grip panels. 9mm, 10x22mm ANTO or 10mm Auto.

No threaded barrel for attaching of silencers and other muzzle devices?

Suppressors.

[Nua Corda]

By all means.

What mods were you planing to make, out of curiosity?

Change the writing, add a licensed production mark if I'm allowed, or something symbolizing my nations military.

Fine by me

No threaded barrel for attaching of silencers and other muzzle devices?

Suppressors.

People from Phoenix are Phoenicians

Much better. PCAPs I presume/hope?

Keymod-style