A little field experience with the 300 Savage in the Remington 722 has me loading a number of 165-grain bullets. I am loading just short of the maximum listed for IMR4064 in the Hornady manuals including the latest. I am loading this weight because of bear encounters but have avoided shooting one up to this point in recent years. My wife and kids will not eat bear meat.
Hunting partner says he will take a bear so I will budget for a tag this year; I passed on a nice bear last fall because I did not have a bear tag. Stopped at Fish and Game office to get one but the Governator had furloughed the employees and the office was closed due to his order. I have used the Remington, Hornady, and Nosler PT 165-grain bullets. I really like the Nosler PT because the front is rather explosive and the rearend keep penetrating. I have used the Nosler Partition in two low velocity rounds the 300 Savage and the 6.5X55 and the expansion has been great on deer with both rounds.
A hunting partner normally carries 165-grain Speer bullets in his 30-06. Because of work load he was using factory Winchester 150-grain Power Points. We traced the path of one in a bear he shot in the ribs angling into the chest. The bullet penetrated around 28-inches and was a classic mushroom. The point being is that you may not need a 180-grain bullet.
I have a few factory 180-grain Silvertips and Remington C-L 300 Savage loads. I have seen them work rather well on deer at close range.
Speer claims their Mag-T bullets will expand at modest 300 Savage velocities but hold up at 300 Magnum levels. The large flat tip might offer a clue. Speer Part #2059. I think Speer has dropped most of this product line but it might be found. I agree the 180-grain, 308 diameter bullets bottom effective velocity is around 2400 fps and that is just about the maximum velocity you can load a 180-grain in the short .300 Savage case. You can still buy factory 180-grain loads.
I believe the 165-grain, flat base bullets offer the best balance in the 300 Savage case. Interesting tidbit is the 24-inch barrel on my 722 in 300 Savage produces higher velocity than some loads in 308 rifles with a 22-inch barrel. Our goals are a little different in that I am factoring in the opportunity to take a deer at 200-300 yards or a bear at fifty yards.
I believe these three rounds will do the duty on a deer or black bear.