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Discussion in 'AR15/10 Rifles' started by Spook, Dec 2, 2011.
375 BR I built on an AR -15 platform for hog hunting. 300 Whisper cartridge for comparison.
I had the rest of the parts so I'm into it for the cost of the barrel, the reamer and dies.... and the lathe time.
I use the same setup and switch out a 458 SOC barrel.
I was thinking of something like that! What parts (barrel,mag) did you use?
What is the parent case? A 458 SOCOM or 6 BR?
I found out that he was using 7mm br as the parent case to build the 375 br/whisper.