What Data? I have an average 2950 with 23-24 inch barrels, over 4 different rifles( mines getting up over 1500rds no noticeable change in velocity or accuracy). and yes the difference from 6.5 to 7mm isn't big but thats the world of ballistics, it goes ahead in very small steps.
But you are arguing that a smaller bullet is better than a bigger bullet so the real question is who are you and what have you done with Greg?
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