I grew up helping my dad reload, so I have an idea of what I'm doing but it has been a while. Getting a RCBS set up but I don't have any components other than a lot of once fired factory casings. I will be building a load for my Winchester Extream weather ss .270 win. It has the 1 in 10" twist. What whould be a good starting point as far as what bullet, powder, primer. I will also be laoding for my wifes .243. So would prefer to buy a powder that would also work well with it. I'm thinking 210m primers and maybe H4831sc power, what do you think??? Also what kinda bullet???? Thanks for the help!!