About to start experimenting with the NAS3 cases.
I bought 20 round of loaded ammo so I could pull bullets and hopefully see what type of powder they are using.
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Charge weight with 150 NBT bullets is 50.5 grains of unidentifiable powder. Looks like a flattened ball powder with either a copper removing agent or a temp stabilization agent. Has that tan/green color like Varget or H4895.
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Factory ammo on left, reseated one on right. I pulled the 150 NBT with my RCBS collet die with about the same effort as a brass cased cartridge. The I ran it through my Redding bushing neck die with no issues, set final neck diameter with a mandrel then seated the 168ABLR with no perceivable additional effort above a typical brass cased cartridge.
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Velocity data forthcoming.