Tad,
You don't say what bullet you want to use. If you are using cast bullets, around 10 gr of unique, Red Dot, Green Dot etc, makes a fair plinking load with just about any bullet. You can go up or down a few grains to improve accuracy. If you'll specify a bullet, I can recommend something else. I really like the Lee 115 gr cast bullet for plinking & squirrel hunting.
For jacketed bullets, you have to stay with a bit higher pressures than lead so as not to stick a bullet in the bore.