I am new to this forum but have already learned much from all of you. I just received a savage 12f/tr. It has a 30 inch 1-12 twist barrel. I could use some help with a good starting load. i have started with h4895 and tac. 4895 with 155 smk got a .485 group i think i can do much better but need advice on what powder to use next as well with neck tension and over all length