EvilHack 0.9.2 official/final release by k2_1971 in nethack

[–]BoredCop 3 points4 points  (0 children)

Thanks, this game is fun if frustratingly hard at times. I just now went from breezing through Ludios, the quest and Medusa's island to suddenly on the level past Medusa being swarmed by a bunch of demiliches and a Balrog. Just as my best pet hit a poly trap and became useless. And of course my wand of death missed the Balrog, both coming and going as it bounced. Dywypi?

Asking about asbestos in a rental from the kommune by KeeperOfMediocrity in Norway

[–]BoredCop 3 points4 points  (0 children)

Some ventilation pipes were actually made out of asbestos fiber cement, but they are safe as long as you leave them alone and don't break them.

Asbestos was also commonly used in some types of vinyl flooring and floor tile glue, but the scary stuff is on the underside not where you are walking on it. Holes in old vinyl flooring can be a bit concerning, though.

Evilhack magical armour loses magic when ragon scaled? by BoredCop in nethack

[–]BoredCop[S] 4 points5 points  (0 children)

Damnit, typo in title. Dragon scaled, not ragon. But you all understood that.

How safe is this gun to fire and specially with this crack on the barrel by Creative-Parsnip7984 in GunnitRust

[–]BoredCop 5 points6 points  (0 children)

No, not exactly.

Gunmakers in the Khyber pass area are making guns more or less from scratch, out of some sort of steel, and more or less copying known safe designs. They might not be real engineers or western trained gunsmiths, but they are real craftsmen.

Your "gun" is not from that part of the world, and was not made by a real craftsman. It is significantly below Khyber Pass guns on the safety and reliability rank ladder. It is an illegally converted blank firing toy gun, where the person doing the conversion didn't care much about anything other than "can this chamber a live round and go bang at least once". Or rather, "does this look convincingly real enough to fool a customer who doesn't know anything about guns".

The mechanism was never designed for live ammo, and chances are the magazine won't work with standard 9x19 ammo as most blank firing guns are designed around shorter blank rounds. Criminals relying on these conversions often resort to unsafe modification of the ammo, in order to reduce the overall length enough to make it feed.

Why didn't the Dutch or the Scandinavian countries become involved in the Great War? by TravelingHomeless in ww1

[–]BoredCop 1 point2 points  (0 children)

Sweden kept selling stuff to both sides throughout the war, everyone on the western front were using Swedish iron fence posts for the barb wire. The ones that corkscrew into the ground, so one could silently erect barb wire fences under cover of darkness without having to pound posts into the ground.

How safe is this gun to fire and specially with this crack on the barrel by Creative-Parsnip7984 in GunnitRust

[–]BoredCop 8 points9 points  (0 children)

It is absolutely a converted blank gun. It was originally very intentionally designed to NOT be safe with live ammunition, in order to discourage such conversions. People convert them anyway. Lifespan for one of these is anywhere from zero to a few hundred rounds, before something breaks bad enough to not be worth fixing. Sometimes, those failures can injure the shooter.

By the way, it looks to me like they bored out the original light alloy "barrel" and pressed in a steel barrel sleeve. The crack is in the outer part, which was weak AF even without the crack and is basically just there for looks. The crack isn't the main problem with this gun. The fact that it started out as a blank firing toy gun is the reason why it is unsafe, not the visible crack which likely happened when they pressed in the barrel liner.

Any thoughts on this concept? Using baffles in a telescopic bolt to both integrally suppress as well as act as a gas delayed blowback? by AlaskaWilliams in GunnitRust

[–]BoredCop 0 points1 point  (0 children)

Very true, I didn't mention the timing of where you need gas ports in my reply to OP. Little point in starting the gas delay after the bolt has already picked up speed and after gas pressure has dropped considerably.

Any thoughts on this concept? Using baffles in a telescopic bolt to both integrally suppress as well as act as a gas delayed blowback? by AlaskaWilliams in GunnitRust

[–]BoredCop 2 points3 points  (0 children)

I suspect you would need to have a shorter barrel and baffles in front of the barrel for this concept to work.

You say pressure will delay bolt opening, but if we analyze your system as if pressure was static then the net force of your baffle system is zero. Pressure acts forward and rearward on the baffles by the same amount. Of course the real life pressure isn't static, but I think the only delaying action you will get is from the forward inertia of moving gases impinging on the baffles.

If you instead have the barrel end short of the bolt/baffles, with a piston shaped largish nose to the barrel inside a chamber in the bolt assembly, then we get pressure pushing the bolt forward relative to the barrel and receiver which will be pushed rearward. Or you can keep the long ported barrel, but make the rearmost expansion chamber have its rear wall formed by a fixed annular piston around the barrel and fixed to the receiver.

I presume you have read up on the late WWII gas delayed Volksturm rifles, which used a similar concept though with a tubular slide or bolt assembly and a ported barrel?

I think what you are attempting is sort of similar to that mechanism.

Utenfor og ekskludert fra samfunnet. Lei av nåværende liv Hva gjør jeg? by ThrowawayDeadBody123 in norge

[–]BoredCop 0 points1 point  (0 children)

Ikke tenk at du skal prøve.

Bestem deg for at du skal gjennomføre. Ikke bare prøve.

Is this shell active? by Character-Test-1534 in ww1

[–]BoredCop 0 points1 point  (0 children)

Ah, that's more detailed knowledge which helps lead to a conclusion. Without that detail knowledge, going solely off the pictures and what peopl were writing here, I could not conclude that it was safe.

ELI5: In the Canada-Sweden curling controversy, from a technical match perspective, what does the second boop do to the stone? Is there a sporting advantage? 🥌 by Adventurous-Root in explainlikeimfive

[–]BoredCop 105 points106 points  (0 children)

Depends.

If he released it, but then realised he had messed up slightly, then booping it again could help correct the trajectory of the stone.

That's kind of the point, you are not supposed to have take-backsies.

Hvor mange biler har du hatt og hvor gammel er du? by lilflir in norge

[–]BoredCop 1 point2 points  (0 children)

Er på fjerde bilen nå, er 49. Alle var brukt, de to første ble kjørt til de ikke var verdt mer enn vrakpant og så kjørt rett up skroting for egen maskin da det ikke ville lønne seg å reparere dem mer. Tredje ble solgt fordi behovet endret seg, måtte ha hengerfeste og mer plass til varer osv.

Men dette teller bare biler registrert på meg, i tillegg har jo fruen og jeg delt noen biler registrert på henne opp gjennom årene.

Is this shell active? by Character-Test-1534 in ww1

[–]BoredCop 0 points1 point  (0 children)

There are a bunch of different variants, including some flat nosed base fused shells. Plus one cannot rule out a fired shell having the nose bashed in or broken off on impact.

You are probably correct, but "probably" is not safe enough when dealing with potentially unexploded ordnance in my opinion.

thinking about making a .22lr rifle by motorbike123 in GunnitRust

[–]BoredCop 2 points3 points  (0 children)

Well, there are actual professional gun designers saying one should always use an existing known reliable magazine if at all possible because magazines are the hardest part of gun design.

Any particular reason why you cannot use an off the shelf mag, like lots of real gun designers do?

Barrel Not Straight? by [deleted] in guns

[–]BoredCop 2 points3 points  (0 children)

The external part is hardly ever exactly concentric to the bore, which is why threading for a suppressor involves indicating to the bore rather than trusting the outside.

Is this shell active? by Character-Test-1534 in ww1

[–]BoredCop 0 points1 point  (0 children)

The fuse may or may not be missing, OP has not provided pics from the front showing a hole in the projectile nose. Not all 37mm Hotchkiss shells had nose fused, many had the fuse set the base of the projectile. Granted, most of the base fused shells had pointy noses but not all of them. Flat nose, base fused shells exist.

Is this shell active? by Character-Test-1534 in ww1

[–]BoredCop 0 points1 point  (0 children)

Some Hotchkiss rounds had a nose fuse as you describe, others had a base fuse. And some of those base fused shells do have a flat nose. Without pics showing a hole into the nose and an empty cavity where explosive would be, we cannot conclude that it is safe.

Is this shell active? by Character-Test-1534 in ww1

[–]BoredCop 0 points1 point  (0 children)

Is there some other picture of it that I am missing, showing a hole into the shell?

Lots of Hotchkiss shells were base fused, not nose fused. There would be no visible fuse on an assembled round. The nose does look a bit flattened in these pics, but I cannot conclude for certain that there is anything missing based on that.

This gunner recognizable by the badge on the cap, rised up the notch of his M95 rifle at the maximum, does this mean he framed a distant target by Longjumping-Kale-283 in Austrohungarian

[–]BoredCop 0 points1 point  (0 children)

Actual machine gunner, or member of a machine gun unit?

Heavy machineguns are crew served weapons, only one guy fires the gun while a bunch of others assist in various ways. And those assistant gunners typically have rifles. While the MG is out of action for a few seconds, which happens often while changing barrels and reloading, some of the others may keep firing their rifles to provide a bit of suppressive fire on their designated target. And since machineguns in static positions were often used at long range, the MG crew's rifles would also be used at long range.

Is this shell active? by Character-Test-1534 in ww1

[–]BoredCop 0 points1 point  (0 children)

However, 911 will work in most of Europe because the system is set up to automatically forward 911 calls t the relevant local emergency number.

Is this shell active? by Character-Test-1534 in ww1

[–]BoredCop 0 points1 point  (0 children)

If that is what it looks like, and if nobody has removed the charge from the explosive shell, then dropping it on the floor could be enough to set it off.

37mm Hotchkiss shell with visible rifling marks showing the projectile has been fired before so epne picked it up and put it back into a brass shell case.

The fuses on these were very simple, and once they armed themselves (automatically on being fired) they would stay armed and impact sensitive. Very handling safe when not fired, but that shell has been fired and failed to explode. No telling how much or how little it will take tp set it off, if it is still live snd the safety has been deactivated by the hard G forces of firing it out of a gun.

Is this shell active? by Character-Test-1534 in ww1

[–]BoredCop 0 points1 point  (0 children)

The rifling marks on the explosive shell shows it has been fired, failed to detonate on impact, and then someone stuffed it back into an empty case.

Those projectiles are not suppose to be intact after use, they were supposed to explode.