I'm having trouble finding a good load for my 300 win mag for hunting primarily deer and elk. I have been trying some Barnes TTSX and TSX in 168 gr. I am not having any luck getting groups under 2" at 100 yards. I have tried different powders, primers and seating depths and am wondering if I should try a different bullet or maybe at least a heavier like the BARNES LRX 175 gr. I like the solid copper bullets but I am not against trying something new. My rifle has a 1:10 twist if that helps. Thanks for any suggestions