50BMG barrel blank.

50BMG barrel blank.

grabcad

50BMG 1 in 15in twist, 2in thick barrel blank, 30in long.66%groove 33%lands. .500in lands, .510in grooves. 8 grooves. If you want to change twistrate, just change the Helix to the twist rate you like. Tell me if you would like to have the file in another format.Greetings!!!

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