If you join Sportsman Guide, they're selling price on Federal Blue Box 30-30 150 is $15.38 a box. If you are in the buyers club you get 5% off. Shipping is about 2+ bucks a box, so for argument shake I'd say around $17.00 a box or so. My favorite 30-30 ammo is Federal. The Federal# 3030a clocks out at 2390 FPS and for deer its a devastating round.
There are other choices of course, but accuracy, quality, and consistency is more important that saving a buck a box. How many shots do you get at game? I want the best ammo I can afford for what I am shooting at, price is secondary.
Target? Any decent mfg or reloads are good for practice.
Winchester/ Federal $ 18.00 per box at Bass Pro and the Remington 30/30 was $28.00 a box. I started looking at the other Remington prices and they were all way more than the Winchester/ Federal. Even the 17 HMR boxes were $5.00 more than the Winchester/CCI.
$15 to $20 a box for any factory ammo in our area with the exception of the Hornady LE. Our Wal-mart carries a pretty good supply of 30-30 factory ammo. About the only time they run out is just before deer season.