Hey fremont.I`ve never used the 175 gr Sierra match kings.I have used the 168 gr Match kings in my model 10 Tactical behind 45 grains of Varget,Win brass and CCIBR2 primers.OAL was 2.810".It is a flat deadly accurate load in my rifle .I`d back off a tad with the 175`s.
There are some fellas here that do use the 175 who can give you more precise info.
____________________ "He who fights with monsters might take care, lest he thereby become a monster; For if you gaze for long into an abyss, the abyss gazes also into you." - F.Nietzche
