7-300 win or? new build questions

Discussion in 'Gunsmithing' started by 300stw, Apr 19, 2013.

  1. 300stw

    300stw Well-Known Member

    Messages:
    193
    Joined:
    Dec 30, 2004
    7MM-300 WINCHESTER MAGNUM 0.3120 1*30" 0.22 HSS GO/SHOULDER
    7MM-300 WINCHESTER MAGNUM 0.3160 1*30" 0.2 HSS GO/SHOULDER
    7MM REMINGTON MAGNUM (180 GRAIN) 0.3170 1*30 0.22 HSS GO/SHOULDER

    I am going in on the Longrifles INC group buy for action truing barrel install,
    they have these 3 reamers in stock,,
    I have a #3 brux 9 twist barrel,
    looking at these 3 reamers, looking for thoughts on which one to go with and why,,,
    looking at 7 mashburn reamers, the specs on lead and throat angle are different than these listed above

    I am interested in 180 berger or the new 178 accubond as fast as I can get them accurately.
    Broz has good things to say about the 7-300, no fireforming,,,,,,ect...

    been down the 7 stw road many times I am not fond of the oal cartridge length vs stock magazine length in factory 700