Yes I cast rifle bullets for most of my rifles, and yes they are accurate. Like anything else, you get what you put into it.
Check out
www.castbulletasssoc.org regarding casting for anything.
The Cast Bullet Assoc. post results of several matches using cast bullets, they list the caliber, bullet mold and loadings, gun, etc. You'd be suprised how accurate cast bullets can be in rifles.
You talk about cost savings, thats not the main reason I cast. but it is one reason.
Example, I cast bullets for my AR,s they make excellant 100 yard reduced practiced for High Power.
As we know, Small Rifles are hard to find. I've discovered I can load small pistol mag primers ( which we can find) in my AR, shooting cast bullets about 2200 fps. This allows me to save my SR primers for actually high power matches.
I made another post a few days ago about Magtec mag pistol primers not going off in my pistols. (cups too hard to allow the firing pin to set them off. I have a couple three thousand and desided to try them in my low pressure rifle cases using cast bullets. They work.
Remember, I said LOW PRESSURE. Great for short range practice.