Sorry I haven't seen this til now.
I have had a 300 Savage with a 15" tapered hunter style barrel for the past 15 years.
This thing will hold between 1/2" and 1" groups at 100 yds when I do my part properly.
I have been using the Hornady 130gr spire point with H322 powder and using CCI 350 mag primers.
Most of my brass that I use now is resized 308 brass. It is a lot stronger, cheaper and doesn't require trimming as often as savage brass.
The velocities I get are right around 2550 fps, with just a little flattening of the primers. When I first started working up loads for this, I watched for the primers cratering. When the primers started to crater a little, I backed off the charge 1 grain. It is easier to guage the pressure of the pistol primers than it is for rifle primers designed for 50,000 cup.
The reason I use the CCI 350 mag primers is that the pressure at which they will start to crater is just a pinch below the max a contender frame can handle without stretching.
I have been shooting this load for 15 years and I still have good lock up, no unexpected fly open by the barrel and accuracy is second only to my 6mm-223 and 22 Hornet. I also set the bullets just a few thousandths off the lands.
HBL