i bought my first .40 cal last summer ,it a S@W M-2.0 4" compact ,i shoot 9 MM ,.357 .Mag and .45 ,so .40 dont kick to me, diffintly a little more that 9-MM, 165 gr was a little snappier ,but 180 grain .40 cal ammo not kick much differant than a 9-MM to me, way less than my .45