They do sit in a pretty sweet spot, as do the 6mm's of modest capacity. My 22" 6.5x47 shoots sleek 129/130's at 2,900 with no problems, burning about 42gr of powder. A lot to like there. In the deer hunting field, it catches up reasonably quickly to the old 270win/3,100fps/130spitzer/60gr powder combo, which is not a bad place to be.
Are we in competition here? My .270 Winchester has a 24" barrel. It runs 110 grain bullets with a BC of .377 at 3,500 feet per second. How far will both bullets travel before the sleek 129/130's at 2,900 catch it?
