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Old November 14, 2012, 12:30 AM   #21
warbirdlover
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Join Date: December 13, 2009
Location: central Wisconsin
Posts: 2,324
Quote:
I think the Weatherby Magnum calibers have a specified freebore in the chamber dimensions. That doesn't necessarily mean that Weatherby uses freebore in rifles built for Winchester Magnum ammo.

You could experiment with seating the bullets out a little more, though you may have to use it as a single shot if the overall length doesn't fit in the magazine.

B.L.E.
I was going to say this same thing. The long freebore is for the higher pressures from the .300 Weatherby Mag vs. the .300 Win Mag. They would be making a giant mistake if they put that freebore on the Win Mag.

Just for the "heck" of it try a box of factory ammo. And 150 gr. should shoot fine in a .300 Win Mag.
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