6.2mm OCC

I'm talking about the millions that carry AK47. The basic AK has 30 rounds. I don't see the problem with that mag.

Remember, 7x46 is not made for the AR15. Ar15 mag lenght is not important.

I don't know if you saw one of my previous posts, Superior Shooting Systems Inc. has sent the 6.2mm OCC to Silver State Armory for a work-up.

While talking to SSS they mentioned that the 6.2mm would have to be thoroughly tested and then would have to go through SpecOps in field before any considerations would be made.

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I did, I just don't believe that the brass are willing to change cartridges at this point. Don't get me wrong, I think you have a good idea, and I wouldn't abandon it, but I think it will be quite a while before it is considered for adoption.

Okay, tell me one more time what this cartridge can do that the 5.56 cannot. I read your little pdf on it and it is not quite clear to me.

Will it accommodate (and maintain good ballistics) a 95gr. SMK. If so I would think that would be the ticket, as it has a very high BC (0.480).

longdayjake, could you run some figures ? 28gr. of IMR 8208 XBR with a Berger 6mm 90gr. MT BT (.411 BC) , Thanks

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Can your casing fit that many grains of powder and still have room for the projectile? It looks to me like it wouldn't have any more case capacity than the .223. Couple that with the longer bullets and you get even less powder capacity than the .223. I am unsure how to run those numbers since the casing doesn't really exist in any program that you can run.

without knowing the pressures one could only guess. My personal guess is that with only 28 grains of powder you will probably get around 2700-2800 fps. You aren't going to get that much more velocity from the saw case just because you lightened the bullet by a few grains. Maybe 200-300 fps more. I would like to be wrong but my experience has always shown this to be true.

I couldn't say. You might try buying quickload and finding out that way.

I know this might be a random bump, but I am interested in this, any news? Also, about how much KE is this putting out?

I'm amazed at how time flies -- it's been two years since we had that very interesting discussion!

I'm hoping that deadduck357 was able to scare up dies and barrel so that he could get some experimental results. The timing is about right for him to report out if everything went well.

I know that wildcatting can use up a lot of calendar time -- I just passed the one year mark with an unrelated project. Dies, reamer, and so on are built. The barrel should be ready within two weeks. I have had one hiccup in the dies -- so will need to get an intermediate forming die to neck the brass down to the smaller caliber. I won't know if everything else will come together until the barrel comes in, gets mounted on the rifle and we do the first shots. Only then do we get to find out if the cartridge works as hoped. I'm looking at the beter part of another year before I can draw solid conclusions.

So, it is possible that his components and test campaign haven't come together yet.

Another major factor is the winding down of the current conflict is dampening excitement over new and better military cartridges.