Oct 24, - It's the Springfield in a bolt-action rifle. Spitzer Flat-base or Boat-tail (Speer, Sierra or Hornady), gr. of IMR, Federal, for the '06, here's grain load data that works like a champ out to yards and will. V • RIFLE RELOADING DATA As a big game cartridge, the has probably been used to take LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT Sierra does not recommend MatchKing bullets for hunting applications. I have a 30=06 so I've spent a lot of time looking at data for the best load with gr bullet. There are many good powders that work well in the Apr 10, - 27 posts - 22 authors.Having bought a subscription, you can download this or other directories on our website. To download the file, click on the button below.