Excellent video. D-ps-sy are abbreviations indicating D-type (= boat-tail) bullet, armor piercing incendiary. I have Finnish WW2-era ammunition manuals, so I checked them. A287 marked in the box is Finnish military ammunition inventory number, which indicates steel-cased Soviet 7.62 x 54R AP-incendiary ammunition without stripper clips. The ammunition type is intended for piercing some armor and then igniting flammable liquid or gas behind the armor - so basically designed for shooting aircraft and setting its (often lightly armored) gas-tank on fire. The Soviets referred the bullet type as B-32. Tip of the bullet contains incendiary mix and is intended to fall apart and ignite while bullet pierces armor and inside the bullet behind it is hard steel penetrator. According manual muzzle velocity was 860 - 875 meters /second. Ammunition manufacturer is marked in headstamp and known factories to produce this ammo included factories 60 (Lugansk), 17 (Podolsk), 46 (Kuntzevo / Jekaterinburg) and 529 (Novaja Ljalja).

Those rounds are for 1930- WWII soviet aircraft. They ran those through the ShKAS machine gun. Armor piercing incendiary rounds.

Kiv. Patr. is short for Kiväärin Patruuna (Rifle Cartridge). D is the designation of a boat tail bullet, PS is armor piercing, SY is incendiary. Based on the box, it's a Russian made armor piercing incendiary, a B-32 7.62x54R. Packaged before the end of the continuation war, so It's captured enemy ammo, which could explain why they look like they've been through a war. Likely surplussed because a Finnish 54R is actually 53R; they're mostly interchangeable, but not the same. It's like the difference between .223 Remington and 5.56 NATO. You should be able to use a 54R if 53R isn't available (there's only a thou or so difference in length), but it's not recommended. Once the war was over, domestic production would have made Russian ammo unnecessary to stock.

Really enjoy Ryan being the designated TFM shooter. His remarks/comments are every bit as off the wall as OG's, but in enough of a different direction that they're distinct from each other. Also enjoyed seeing the terminal effect of the ancient ammo! 👍

15kpl 7.62 kiväärin patruunaa (translation: 15pcs 7.62 rifle cartridges) 🤔 what i coincidence that i just opened youtube, and saw this as a Finnish follower.

I like Ryan's humor, and he's a good shot as well. Had a great time watching this video. 👌🏻👍🏻

You would certainly think American Petroleum Institute rifle cartridges would have more of an effect on gasoline. Thank you for helping us understand what these rounds can do, and thanks to John for sending them in!

Ryan is officially Audience-approved. He's a good shooter, witty and just irreverent enough to keep us guessing as to what he might say next.

The tip never lies, I realized they were HE Incendiary rounds when you opened the box but I've never seen ones as spicy before. It's amazing they didn't break down or just turn to rust

I love those API Rounds impacting with the High Speed Cams, that's such a Beautiful Display of Destruction.

You definitely don't get content like this every day, truly outstanding!👍👍

My father gave me some packaged exactly like that, only 1951 (and actual Finnish manufacturer) with brass cases. It was for a 1903 Springfield, and in considerably better condition. Fired just fine 30 years ago. He bought it shortly after the Korean war.

black-red tip are armour piercing incendiary round from my understanding, Nice video :)

double crimped primer, that means it was intended for the ShKAS machine gun. more than likely came out of a wrecked/downed soviet aircraft

I don't know where and how you picked this guy up, but he's got the right amount of TFM snark and fits just right in. Another great video, keep it up. P.S. I'm addicted to cosmoline too

14:09 love the bird flying through the high speed shot 😮

armor piercing incendiary black over red

I hate that I hardly get recommended your videos anymore Tao Still love to see em. Was talking rockets with people from work and we all watched your Gyrojet video.

Ryan is a fine gentleman, good with his words, fine shooter. Hope we can see him more on a range with more exotic ammo. Man, life is like a box of old ammo. You never know what you get. API, what a flashy treat. And what a nice bonus at the end! Amazing stuff.

What a treat, like seeing the old ammo demos, this one was especially interesting with the spicy rounds from the past. Thinking if the bag had been ballooned out so the vapor could fill more space, you may have gotten a little different result, but it's just a SWAG (scientific wild ass guess 😂) as always, enjoyed and will be looking forward to more from the mind of Jeff and the TFM crew.

From what I googled it says those are armor piercing incendiary rounds or api like you said lol love the measurements of freedom in hamburgers lol my kind of figures lol awesome video those rounds did great for the age the fire ring was awesome too thanks for sharing

Amazing video, incredible rare ammo find! These were some great results.

Along with the 'regular' exotic shotgun slug content, I and probably a lot of people also really like these videos about old exotic rifle ammunition! Thanks for the video :)

Lots of fun shooting old specialty ammo but most if not all ammo from that era was mercuric primed, I believe, so better clean that Mosin well. Great video though!

Hello from France... Wahou good discovery... It seem's percing armor and explosive bullet (black nose ''percing'' and red circle ''explosive''). Thanks for this vidéo. See you soon

I really want this guy to come back more often. He's just damn funny

Ryan and OG have the same type of humor. Thanks for making this video. The old ammo was performance was interesting

Great video! really enjoyed seeing some rifle content as an Scandinavian. In addition, I use a Mauser K98F as my main rifle and it was extra fun to see content so closely related to my own firearm. Loved the content, the humour and the bullets.

I love armor piercing incendiary rounds! Anything that makes nice holes while simultaneously exploding is just fabulous!!!!!

Another…banger…of a video! Ryan is great, I thoroughly enjoy his humor!

That was really interesting, I really appreciate you guys expanding the old emerald that way all for the love of science, right, anyhow, I appreciate it

The red black color markings must mean it is an armor piercing incendiary (api) round.

I'm glad that that bird off in the distance made it out okay!

i would have expected Finnish D stuff to be heavy ball and not API, when it comes to dented cases, very common with combloc copper washed steel cased ammo, still goes bang and fireforms itself straight when you fire them, no biggie, if it seat it yeets.

I would love to see Ryan back, he fit right in beautifully

I knew this guy would be back. What a personality! I'm still laughing about the Cole's Law joke he made after shooting the cabbage.

These are explosive target accusation rounds. Often used by snipers since they caused devastation

Amazing video guys, as always. Great guest, too

"This is Tula ammo, a weapon to surpass Metal Gear" I love this guy!

I love my Mosin 91. It looked like it had been dipped in crankcase oil for storage. The receiver was marked as being made by SAKO and with Chinese surplus ammo it will stay on an old Copenhagen can at 100 yds. Fun times.

Are you sure they were not just picked up off the battlefield in the Ukraine last week?

Kentucky ballistics would be proud of the table destruction

Jeff: "Yeah, I try to make these tables last as long as I can." KB Scott: 😏 Great video as usual. Enjoying Ryan's humor.

Someone has been hangin around Officer Gregg for about a decade too long.

Nice...API rounds, love the video Jeff.

I mean…. API round?

Loved Ryan killing it with his marksmanship! And he was also funny. Appreciate the content ❤

Really enjoyed this one. Hope you invite him back again. Like a younger OG. Those rounds were spectacular! I'd hate to get shot with one and have it hit the titanium wire holding my chest together. Be quite a shock ,to say the least. Boom, "Hello St. Peter!"

44 is still a year out from beating Germany, so yes they would be picking up used shells and sending them back to be remanufactured. Great find. Hoping to find some of these someday.

I’m sure some else may have suggested this, the vapor needs to be around the application-programmable-interface(😂) impact for ignition! Love your videos!!

"My name is Ryan and I'm addicted to Cosmoline" Please have this man on more often!

14:19 a visit from a real life fladermaus. Did no one else see the bat? Love your work Jeff

There's a difference between the two steels used. Mild steel is more of a general purpose round for when the rounds might have to defeat mild cover or obstacles like bushes or interior walls or doors and worn equipment. The hardened steel used in AP rounds is for just that, armor. Pretty cool video! Those clouds and fire rings are amazing!

You got a real gem there... Those are russian API rounds used everywhere, from bolt actions, through LMGs to aircraft armaments... The telltale flash on impact is the incendiary part detonating and the color coding on the tip is consistent... Love this! Google (since i cant put in links) 7.62x57mmR B-32 (7-BZ-3) EDIT: oh nvm, kept watching, and this info is in the video after all xD

Great video Jeff! I think Ryan is a great addition to the guest shooter lineup. The shot of primary ignition with the bird in the background is priceless! Thanks

OG's kid brother is a great addition.

WOW, those 80+ year old API rounds where not messing about. Fantastic content as usual and I love Ryan's humour. I would not feel safe having those shot at me even in a period APC or light tank. It would be interesting to know how much performance they have lost if any over those 80/90 years.

There's a reason the Finns were pretty much unstoppable during the Winter War. Sisu, along with special treats like these. They were very tactical with everything they did.

Great video, thanks Ryan, Mark and of course Jeff 👍

Non-AP steel core is used to improve barrier blindness, not because it’s cheaper than lead. Mild steel core isn’t AP but it does improve penetration of non-armor barriers such as windows and sheet metal on vehicles. Also steel core is prohibited on almost all indoor ranges, not because of its penetrating capabilities but because it can generate sparks that can ignite unburnt powder that can accumulate on the floor of indoor ranges.

Good to See Ryan on the channel again, love his subtle sense of humour. Glad he had some fun playing with some "SPICY" vintage rounds! Greg, Mae, Ryan & Brianna video needs to happen. Maybe an anniversary special or something. :)

Enough of those " Altitude Programable Interceptors " going through a vehicle soon enough something is gonna go boom. Fantastic images, thankyou for taking the risk.

Good job Ryan and Jeff. I did the Mosin and 54R thing back when it was cool; it always amazed me the rather crude looking surplus ammo always worked. That said, I must admit I didn't enjoy shooting the thing much at all. Wound up selling it for double what I paid for it (less costs associated with initial cleaning off of cosmoline, of course), so I guess "been there, done that" will have to suffice. Feel better soon, Jeff! - Ed on the Ridge

Man I love Ryan's sense of humor 😂. Imagine having him and OG in a video. Please Jeff! 😂❤

These are old Russian BZ-bullets. (B-32 / 7-BZ-3 by the looks of it) Essentially just Armour-Piercing Incendiary, or API. They were in production from 1932 to 1969. I'm frankly amazed they still ran so smoothly after all these years. I wish I knew how the Finns got their hands on these pearls, I bet that'd be quite the story! 😄 EDIT: Spelling, English is not my native language... 😂👍

I think we have to clarify this, indoor ranges typically dont allow bimetal jackets or steel core ammo, not because it is 'armor piercing' but because it is ferrous. Indoor ranges typically have a lot of unburnt powder, coating the walls, stalls, targets, backstop, etc and generally the dont want the liability of a fire happening due to a spark. With that said, yeah typically ammo wont cause a fire, as seen in this very video, but at the end of the day a business has to run and insurance is a huge part of that

I would suggest that steel is less likely to lose energy due to deformation, and the risk is not as much penetrative power, as it is ricochet. I would also suggest that years of passing down, "don't shoot with steel because it can go where you don't expect it," got turned into "don't shoot steel cause it can go through to where you don't expect it." I felt horrible watching you open that treasure, and yet I'm so impressed those rounds worked so well, and glad you documented their use.

Ryan's delivery is perfect for the presentation of the boxes.

Those rounds were amazing for how old they are. And those fire rings were cool. 👍

The Myth Busters tried this with tracers. They increased the yardage to see if tracers would ignite a car gas tank. You guys were about 25 yards to close. Hey, live and learn. Great guess shooter. You can bring him back again, he would go good with the "OG." Thanks for the good content.

translations: 15 items 7.62 rifle cartridge without straps bullet: D, armor piercing, incendiary casing: ferrous origin: Russian inspected: May 25th, 1944

Wow, fun test! I’m impressed by that 80+ year old ammo. Great velocity, always lit off when it hit, great penetration. You could take this stuff to war.😁

This gent reminds me so much of some of the best engineers ive ever worked with. Great vid 👍

Amazing video! I have a few of these rounds I want to test. You got some great footage!

The TV show "MythBusters" did an episode on the Hollywood meme of cars exploding every time when hit with a bullet. It turns out gas tanks aren't that easy to blow up. First off, the off-gassed vapors burn, not the contained liquid fuel inside the tank. Then you need the proper oxygen content for the vapors to ignite. I think that during war time air combat the first shots would puncture the tank and following incendiary rounds ignited the vapors from the leaking fuel. Another entertaining video. Good job guys ! ** And so much for "crappy" Soviet ammo.

i like the new guy,,he is petty funny like Greg!

Now that was awesome! Thank you for your hard work!

Those aren’t technically 7,62x54 they’re Finnish 7,62x53. Hence looking like the bullet wasn’t seated all the way. It’s typical of that round. It’s fires reliably out of a typical 54r rifle as it was intended to be used in adverse conditions perfect for the Fins.

I remember seeing an old soviet manual that had info on shooting this type of ammo through mosins. It was known to jam bolts shut. If this happened, the manual instructed you to place the rifle on the ground, put one foot on the stock, and kick the bolt till it opens.

Glad to see Ryan come back. He fits in nicely.

I don't consider old ammo to be collectible, unless it's in a sealed can. Ammo is meant to be used and you've got to keep your "collection" fresh by shooting all the old stuff first. For the gas, try pulling it out of the bag at the last minute and having it in the open, it just needs more air in the mixture. A small bowl might work, or a large lipped plate for best visibility. As a programmer I appreciate you guys using the correct definition of API. :P

Steel Core Ammo is prohibited at Indoor Ranges not because they think it penetrates armor. It's because the steel cores spark when they hit the backstop. That could cause a Range Fire with all the unburnt powder downrange.

I really enjoyed this show, thanks!

Now yall got me craving 80+ year old Finnish surplus cheese.

14:11 I don’t know what kind of birds you have but that’s a big one flying from left to right through the smoke.😮❤

Ferrous Bullets Day Off: A Taofleder Flick.

Interesting that the 80 year old Soviet ammo still does work. Got to forward this to some Finnish guys I know. Love your videos! PS: Ok, is this now a change from school busses to hamburgers? I mean, I´m still wondering about if you meant American, Asian, European or African school busses. And where are those burgers from? West coast? East coast? Texan? Smash burgers? Or the international McDonalds standard burger?

When it comes to the steel core ammo situation, a lot of the bans have to do with sparking more than actual penetration concerns, although it does chew up backstops.

API, Apple Products Inc., lives up to its namesake. Lots of flash and bang, but not much advertised result. In all seriousness, API was designed for full auto use. Numerous hits in a small area will penetrate light armor and can ignite some materials like truck seats or ammo crates; As Intended.

Yep, WWI pilots found it was almost impossible to get hydrogen observation balloons to catch on fire even with incendiary rounds. Mostly, they just passed straight through. It took them until 1917 before the British devised an incendiary round which was more successful than the very inaccurate French rockets that were in use up until 1918. It's debatable whether the incendiary rounds were more successful than the rockets, but they had the big advantage that they could be fired from a greater distance. "Balloon busting" was one of the more hazardous assignments WWI pilots could be tasked with, both because it brought them within range of heavy ground fire, and because of danger from the hydrogen balloon if they actually were successful. There were decorated balloon aces from both sides. These particular rounds were intended for use against lightly armoured vehicles, specifically to set fire to the fuel tanks. They were intended for use in a light machine gun, as a single penetration is unlikely to result in a fire. The reason for the packaging - there are three five round clips per packet, and the packets were designed to be alternate stacked into metal boxes, 20 packets (300 rounds) per box. API = armour piecing incendiary round, which I'm sure you knew. The bullets actually were inserted into the cases correctly. There is a ring depression around the bullet, and behind that is more bullet with a boat tail. It's correct if you can still see the depression. The ring might improve obturation of the projectile in machine gun barrels. Those rounds should not be considered safe. It's possible for muzzle bursts to occur. That is, it's possible for the HE component to ignite immediately after leaving the barrel. Eye and ear protection should be considered as non-optional.

Great video Jeff! Very fun! Does Ryan have his own KZfaq channel?

I believe a tank of gasoline would ignite if hit by application programming interface rounds because of the compression and heat. Also O.G.'s hairy daughter is great on camera. Loved the video and thank you for sharing the results captured in such high detail!

Those are the exploding rounds that snipers loved in WW2. Cool!

When OG and Ryan finally meet, it's dad jokes day and I'm eating all that up. I still puff air out of my nose remembering OG's "monolith one lith" joke 😂

I love this dude. He's funny. I'd love to see more of him and maybe a live stream party with him, Jeff, OG, Bri, young Danny? Eh? EH?! And do a tarp giveaway live on stream with everyone's autograph on it.

Kiv. Patr.=Kiväärin patruunoita = rifle's cartridges Luoti D-ps-sy=Luoti D-PanSsari-SYtytys Translates to Bullet D-armor-ignition, or armor piercing incendiary.

Be sure that if you invite Scott from Kentucky to the range that he brings his own tables!!😂😂😂

I like the Robin flying in the background.

Excellent slow mo!

Steel core ammo is also a no go on indoor ranges because of the increased risk of sparks that might ignite the powder residue that is everywhere on a range floor