7.62x39 Tulammo 122gr VS 124gr Cutaway

Was asked to show the differences between the 122gr and the 124gr Tulammo 7.62x39. Although the sample size was too small to really tell, it seems to be the same projectile (in my opinion). Weights for two of each and pics below. Thanks wolfgang
powder 24.1gr + 24.4gr
bullet 123.4gr + 122.7gr
case 104.6gr + 105.2gr
powder 24.6gr + 25.1gr
bullet 123.2gr + 122.7gr
case 104.6gr + 105.2gr