i know i have asked this before but i want to build a rifle with 17 inch barrel mainly for hunting but also target shooting out to maybe 800 or 1000 yds on paper.i am thinking 6.5 x 55,6.5 creedmore ,.260 or 7-08.would 6.5 x 55 have any advantage over be best. thaother 2.also considering 6.5 x 284 or 7wsm. for creedmore,260and 7wsm wood lrp action work. of first 4 which would nks