Found some 300gr. Nosler Partitions yesterday at a local sporting goods store. Going to try them and see if I can get group like I did with the Hornady RN bullets. I have 65rds. of the Hornady 300gr. RN bullets loaded and going to range today with the chronograph to see what velocity I am getting with the 20" barrel in the 375 Ruger Guide Gun. That way I can compare with the 300gr. Partitions when I load them.
Thanks. Will keep you posted.
