I too shoot a Savage chambered in 300 Winchester Magnum with a factory 26" fluted varmint barrel. I have some loading data for you to get some kind of idea what you might want to try. This is the load that I use. 71gr IMR7828 CCI BR-2 large rifle primers "not Magnum primers", Hornady 208A-MAX. I am loading my shells so the bullets are just touching the rifling. I also necksize with the LEE collet Dies. I am showing no pressure at all I tried pushing the bullets faster and lost my accuracy My best group is 6 3/8 at 820yrds.I figure My velocity is around 2900-3000 fps. I have killed an 8 point whitetail at 560 yards and this bullet did a beautiful job in one shot it didn't take a step the deer just sat down like a dog and it was all over. I didn't find the bullet but it expanded nice. There was about a 2 1/2" exit hole and the bullet didn't hit any ribs on either side. Just my 2 cents.
