Originally Posted by shooter2904
well what would be a similiar cartridge that would give me a little bit barrel life
no free lunch
22-250 is hotter and less barrel life than 223.
6x284 is hotter and less barrel life than 6br.
I think the 6x47L and 6XC are a good balance.
You can almost say barrel life is inversely proportional to MV.
You also need to select what bullets you expect to use as this will influence the twist rate you need.
How and for what purpose do you plan to use the rifle?