Thank you for the reply Meece. I learnt long ago to ask as there is no such thing as a stupid question.
Yes fairly new to reloading.
I am restricted somewhat on powders on what my RFD stocks which is predominantly Vihtavouri.
As you can appreciate powder isn't cheap so I am not wanting to have to buy too many of them, so I will be sticking with either the N130 or N133 for the .223 with Sierra 55g Blitz. This is based mainly on reading up on it and some input from a bench rest shooter, not from my actual loading experience, which is not great.
My thought was to safely work