Wanted to buy an economical rifle to pull double duty for calling and a deer round for my daughter. After reading all of the good stuff about accuracy with the Stevens guns I decided to buy one in .243 caliber. Is there something special that you can do to the gun barring extra $$$$ to shrink my 3-4 inch groups? I am shooting Core lokt 100 grn. factory bullets right now but will be loading some shortly. Should I try lighter bullets? I guess I was hoping for one of these cheap tack drivers that I have constantly read about. Any help will be appreciated!