7.62x39mm gel test: Yugoslavian M67 123 gr FMJ

[chopinbloc]

https://youtu.be/T-Y4ixQfWkI

Impact velocity: ~2,390 fps
Neck: ~3"


We know about what 7.62x39mm FMJ will do to tissue and it's hard to capture them in a gel block because they yaw so hard so little effort was made to capture the bullets. I did want to see how early this bullet yawed and I wanted to see the size of the TSC on the high speed. Let me know what you think.

 

[Panzerschwein]

Looks like a devastating manstopper. I wonder what the knock down factor or one shot stop rating is?

 

[chopinbloc]

Not sure if serious?

In case you are, there is no such thing as "knock down factor" and the one shot stop popularized by Marshall and Sannow had been soundly debunked.

 

[gripper]

I still have two cases of this stuff, along with the 182 grain M30 in 7.62x54R. Corrosive, but hard hitting and accurate. I think the flat based M67 design contributes a bit to its yaw cycle without compromising barrier penetration.

 

[Panzerschwein]

Windex will solve the corrosion issue. Just liberally spray down the bore and in the mechanism and wipe clean, then clean as normal. The ammonia will neutralize the salts from the corrosive primers and also has a bonus degreasing effect. I used this method on my Mosin Nagant rifles for years with nary a rust spot in sight.

 

[chopinbloc]

A hose works fine.

 

[gripper]

I've used the Windex trick for years... Usually, right at the range, on an unloaded &locked open rifle still on the sandbags and still got.Old trick,that works well " prepping " it for a real cleaning when I leave the firing line.

 

[FROGO207]

You are brave! The last time I tried to shoot like that with my Crony I shot it dead center.:banghead: I was not impressed to say the least. I still do not know how the heck I did it though as I still hit the target and water jugs behind it as well with at least part of the bullet though.
Yeah that bullet barely penetrates before it starts to deviate.

 

[chopinbloc]

I'm surprised I haven't hit it yet. You probably just cursed me, though.

 

[kBob]

chopinblock,

Neat test.

How does accuracy with the M67 at 100, 200 and 300 yards compare with more M43-ish loads?

Thanks for doing the work and posting this.

Check PMs.

-kBob

 

[gripper]

Lots I have shot have been more accurate than quite a bit of commercial and surplus. Rivaled my (dwindling) stash of Chicom Copperwashed Steelcore.

 

[chopinbloc]

I haven't really shot for groups with my AKs. I'm just not very good with those sights. I just zero and shoot steel.

 

[Wishoot]

Love this ammo.

Makes my SKS sing.

 

[Panzerschwein]

A hose works fine.

Not too many hoses at the range I go to. A bottle of Windex (or generic equivalent) goes in the range bag with me. Believe it or not, but the bore and components can start to rust even before getting home.

 

[chopinbloc]

Wow. Sometimes I forget how nice it is to live in AZ. I have left my AK for weeks after shooting ammo with corrosive primers and had no rust.

 

[Panzerschwein]

Here in Kansas, it gets well humid during the summer months. It's even worse back home in Illinois! The bores will frost over if not cleaned right now... been there, done that!

 

[chopinbloc]

Yeah, not very many months that aren't dry here. Keeps the guns in good condition.

 

[fireman 9731]

Seems pretty impressive to me. Do you think they designed the bullet to perform this way intentionally or it just happened that way?

 

[chopinbloc]

According to interwebz rumor, yes, absolutely.

 

[HGM22]

Thanks for posting this. I've actually searched multiple times over the years and wondered why no one had made a ballistics gel video of the round many say is best for defensive purposes or hunting.

 

[Panzerschwein]

Chopinbloc: Have you ever considered doing a gel test comparing 9x19mm NATO and 9x18mm Makarov ball ammunition? Maybe even throw a .45 ACP ball round in there?

That would be a fun comparison. See how the old (and current) Western and Eastern military ammo performs against one another. Just an idea.

 

[chopinbloc]

That's a really good idea. I might do that. The challenge would be having enough gel though. FMJ bullets tend to penetrate very deeply and they tend to yaw and divert from their original paths.

 

[Vonderek]

That was pretty dramatic. Got to get me some of that.

 

[Panzerschwein]

That's a really good idea. I might do that. The challenge would be having enough gel though. FMJ bullets tend to penetrate very deeply and they tend to yaw and divert from their original paths.

Ah, that makes sense. I have never seen a test like that done before. Thanks for doing all these tests BTW, they are very interesting and I have watched almost all of your videos!

 

[chopinbloc]

Track you for your support.