My advice is to buy everyone you can afford. It is the finest production rifle made no matter what model.
The recoil lug changed with the 85's.
For a pure hunting rifle nothing beats a 85. They are lighter and mine are slightly more accurate than my 75's. I do prefer the 75 stock though.
All the A series guns I own are also extremely accurate but they are in varmint calibers.
Dink
What do you mean by A series? certainly the AV's and AIII's were offered in standard long calibers. I've seen plenty of 7mm and 270's in both.
If I were looking for one, I would go with a pre Garcia L579 in 308, especially since I have one in 243