So since the smk’s shoot a little better out of your rifle does that mean you’d entertain selling some tmk’s?I use 8208 and TAC with 77 SMKs and TMKs out of a 18” 1-8 twist AR I’m shooting in some local matches. 24.5 grains of TAC or 23.4 grains of 8208 in LC brass lit by a BR4 loaded gets me 2750 with either bullet. The SMKs actually shoot a little better out of my rifle. You should be able to easily get to the speeds you desire in a bolt gun with either powder without compressing the loads.