Filming a tank firing, in slow-mo

[theJanitor]

It was a toss-up putting this in the Rifles and Carbines, NFA, or the Ammunition forums, so GD it is


https://youtu.be/xpJ8EoGmLuE

[okie john]

Interesting to see the yaw in the projectiles.


Okie John

[LockedBreech]

Well that was the BEST

[Lex Luthier]

I'm awaiting the successor to Arlo Guthrie writing a song about the "Great South Texas Watermelon Massacree".

Thanks for posting that!

[Suvorov]

Best job I ever had!

That said an APFSDS round looks a little different leaving the gun.

[theJanitor]

Best job I ever had!

That said an APFSDS round looks a little different leaving the gun.

I assume these rounds are manufactured in a machine shop, or similar, and aren't exact copies of real projectiles. It would have been cooler if the targets blew up

[TGS]

Interesting to see the yaw in the projectiles.


Okie John

When I was in the USMC, a Gunner (https://en.wikipedia.org/wiki/Infantry_weapons_officer) told me that the yaw on the M855 from a 20" M16 meant that it had the best penetration at 200 yards as that was the soonest it yawed the least.

Fun to see the concept in high speed video.

[Suvorov]

What is demonstrated by the yaw is one of the reasons Most modern tank guns are smooth bore. Both HEAT and APFSDS Are adversely affected by spinning and yaw. The dart of a sabot round relies on all its mass being behind it when it impacts armor. If it is yawing it’s penetrative properties are greatly diminished which is the point of Kontakt reactive armor as well as the wedge armor of modern Leopard tanks.

The first shot in this video shows the lack of yaw from a APFSDS round although it has been fired from a rifled barrel (pretty sure 105mm L7). The second shot is the canister round from the 120mm M1A1 gun.


https://www.youtube.com/watch?v=lWn_NhYzD_Y