Re: 7rum build
My factory Sendero in 7 RUM likes 140 gr. Noslers and Corlokt ultras, and 162 gr. SST's, but does not like 168 gr. Bergers. I have not tried the 180 gr Bergers yet, but I am concerned about barrel errosion, so I have been playing with 190 gr. Matrix VLD's. They shoot well and I am getting 3050 fps from them. I am trying to use heavy bullets, and hence, less powder to prolong the barrel life. The 180 Bergers may also work in my rifle, but I don't have the time to try every combination, and the 190's from Matrix perform well on the range. I have not tried them on game, maybe this year.