And a reinvention of the .25 TCU

by bj , Wednesday, April 22, 2015, 21:36 (3507 days ago) @ mcassill

I seem to remember that the 7TCU was not the first 7mm based on that cartridge case. Just as the .300 Whisper and .300 Blackout was not the first .30 caliber cartridges on that cartridge case. The real old IHMSA guys would recognize these various cartridges that were made on the .223 case diameter in order to chamber in the Remington XP100 action. There were also people that necked up the .223 case because they could get the cases easily, and used them in custom made Contender barrels.