Precious few medium game cartridges have a flatter trajectory ( or smallest deviation from line of sight) then a .257 wby when shooting 80 TTSX at full giddyup. I have a .300 win mag that shoots decent with 130gr TTSXs and Rel 17, and at 3650 they fly pretty darn flat also. I imagine a .270WBY and the light TTSXs for a 6.8 at full useful speed would require very little correction to 500. The wind will blow these around a bit though.
Last edited by wyoming260; 10/16/17.
