try an old load,,it will shoot great in any 300 wby,,try h4831,, with 150 gr. nosler bullit cci mag. primer,,if you check every nosler bullit,, you put in the scale pan,,will all weigh the same,,a lot of bullits wont.,, weigh the same,, i have shot elk out to 600 yds,,with a 300 wby mag,, it...