How accurate is Savage out of the box?

[Ishooter]

My wife got me a Savage Model 11 in 243 about a year ago. I have been trying to work up a load that it likes. The best group I can get is about an inch and a half at one hundred yards. I keep hearing how accurate Savages are and this one can't stand up to my 700 or my Encore. They are both 243. With the 700 I can get a half an inch and with the Encore I can get three eights of an inch. I use the same type of scope on the Encore and the Savage. It is a Weaver 4x20 first focal plain. The Savage has the accu stock and safe accu trigger or what ever they call it. I shoot 100gr Sierra Game King and they work great in the other rifles. I have tried 6 different powders and I don't know how many different loads. Is this the best I can get out of a Savage? I was looking for at least half inch groups. Thanks for your time.