I have 2/ 270. rifles , but only one 30-06.. at this time. But all things being equal the 30-06 as the parent to the 270. dont see how one could kick a LOT less Or MORE then the other. If both had 100 grain bullets or 150 grainers etc.it be the same wouldnt it? I guess most 30-06 ammo used wouldbe 165-180 grains(i know they make 220,s too) i have a bunch of 30-06 with 150,s( military& civilian) But thats only a15- 30 grain difference , the size of a extalight weight 22.

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