Haha... SOLD! 6.5 it is... x47 or x55 is the question!
x51 (260rem)
"Is the correct answer...." It probably is. My son, who has an extensive knowledge of shooting in general, has just decided ona 260 Rem. In addition to its balliustic advantages, there's lots of 308 brass available. You might feel it necessary to turn the necks in order to properly resize them in a 260 Rem die.
47L
Designed to set records, and has...the 260 never will!
Keep the .243 for fox and small deer
hmmmm, lots of peeps use a 243 (insert pretty much any other calibre of your choice) and that hasn't set any records but they still seem to kill deer ? and the 260 pips the 47 on velocity , which doesn't matter to me but while we're playing top trumps I thought I may as well mention it..........