RE: Is the .300 WSM any good?
It is a good cartridge RE: accuracy, and performance levels between a .30/06 and a regular .300 Win. Mag. But, if you own EITHER of these two, there is really no point in getting one, other than the fact the new round is available in short-action rifles of the same size and weight as the M70 Featherweight in .308 Win. caliber.
Larry