How wide are the groupings you get with it? I've heard bad things about Mini-30s.
I'm currently at approximately 1.7" 5-shot average at 110yd with cheap surplus ammo. I haven't really tested the accuracy with proper factory ammo or handloads yet. So far I've worked on it for approximately an hour, ie. slug-lapped the barrel, leveled and re-torqued the gas block and installed DIY front and rear gas piston buffers. Once I get a smaller gas bushing to reduce bolt speed I'll take it to the range with some proper ammo and see what it can really do.
Before these mods it was pretty horrible. 5-6" 5-shot groups at 110yd and severe stringing from cold to hot. No wonder they have a bad reputation. So far mine has proven incredibly easy and cheap to improve. The current ~1.5MOA accuracy is more than I'll ever need for a whitetail at up to 200yd but now I'm plagued by morbid curiosity how much I can improve it on a nickel and dime budget...