I recently picked up a used Savage Model 10 .223 Rem. The only ammo I had available is the Remington 45 grain Hollow Points. Right now the gun is consistantly printing 1 1/2" groups, but I know it can do better. Is this about as good as I can expect from the Remington ammo? I know its not the best ammo but its all I have available right now.

I know some will ask so I will throw this out there...
The action screws are tight.
The tang area has been relieved for zero contact.
The sides of the barrel channel have also been relieved for zero contact. (just to be sure)
Bases are loctited.
Rings loctited.
Scope is a proven reliable scope.

I know the tupperware stocks are less than desireable and plan to replace it with a Bell and Carson Duramaxx when I can.

Thanks for any opinions.