.500 NE titanium AR50 Prototype Project

[plastikdreams]

It would certainly appear so.

Don't you have an op ivy album you should be listening to?

 

[TeachMePlease]

Don't you have an op ivy album you should be listening to?

 

[sw1ne]

Started working on the lower using some 6061 flat bar aluminum stock. I ran a face operation. I might drill the 1 and 3/16 inch hole in the center of the original stock point. Also got another piece of stock for the barrel and it’s much longer. I already have the buttoning tool and was thinking about lubing it and pressing it on a hydraulic press with some spacing rods. I have a blank piece for the upper that I’m going to use the negated details of on the bottom most portion to sit in line with the pin position of the lower.

 

[plastikdreams]

It's gonna be great to have such a great archive when you get your Darwin award!

 

[standardparts]

With that rim smaller than the case, it might be a .50 Beowulf.

The one on the right:

The one on the right reminds me of the .499 Leitner-Wise project. Straight case, rebated rim. U.S.C.G. was looking at high powered boarding weapon that could use existing M16 lowers around 20(?) years ago. A 30 round GI m16 mag would hold 7 rounds of .499 if I remember correctly.
Project got shelved and there were uppers around. Ammo came from Silver State.

 

[sw1ne]

It's gonna be great to have such a great archive when you get your Darwin award!

What did you think about the 304 swap?