I'm new to this forum BUT I have had 6.5x55 for over 15 years mainly styer manlicher but I switched in Feb 19 to a 6.5 creedmoor using 139grn home loads and it's a Sauer field shoot and at 750 yds my longest I can practise on its hands down a better group, smoother in a 24" barrels I may also add but I love this gun