Being left handed, the pre-64 70 is not very useful to me. But I have built two guns on Lh M70 actions that follow the theme of this thread.

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.270 Win, 22" fwt contour barrel in a Compact stock. This is my oldest son's "one gun" and has never let him down.

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.30-06 with fwt barrel in a McMillan stock that was originally a RH Remington ADL pattern.

FWT contour barrels make a gun feel far more lively in the hand than the mere number of ounces saved would lead one to expect. Winchester really got this contour right.