Originally Posted by coyotelite
Does the Berger manual list the most accurate powder tested? What does it list as the average speed under max load?
The Berger Manual shows the max load of IMR 7828 SSC at 75.2 with a velocity of 2897fps for the Weatherby 300 and the Berger 210gr. The Berger Manual does not show the most accurate load. The most accurate load in a manual is ill relevant. Every rifle is different. You need to find the most accurate load for your rifle.
Berger shows the max load for the 300Weatherby and the 210gr Berger using H1000 at 80.5gr with a velocity of 2893fps. Never start out with a max load!!
I shoot through a chrono when first starting a new load just to watch the velocity as I look for the rifles max load with the combination I'm using checking for pressure signs and paying attention as I get near the book max. The chronos velocity is just a guide and the actual true velocity will arrive when you prove the load. There are some chronos on the market now that are very accurate and worth the money if you enjoy reloading .