Having taken down a Savage to the smallest part, I have absolutely no clue what people are saying when they say the Remington is easier to work on. The Savage trigger was real easy to work on/replace on mine, as was the barrel, floor plate, etc. What cheap cast part does anyone mean? The bolt handle? Other than that, I cannot think of a cast part on the rifle. The follower isn't, neither is the mag housing, the trigger guard, the fire control group housing, sear, none of them are cast.
And since the user really can change out a Savage barrel with a shop vice, two blocks of wood, and a wrench (you also need a go-gage). That can't be done on a Remington. Ergo, the Remington might be just as easy on minor parts, but the Savage is almost infinitely easier to rebarrel and thus, easier to work on than the Remington.
Ash