I heard & read a lot of negative stuff about the Mini-30 before I bought mine but it has been nothing but extremely accurate with the right ammunition. The cheap 123-grain stuff never was good but I didn't shoot much of it. I did try the Tula 154-grain PSP and it shoots like it a laser. My main interest is in cast bullets and I designed a TLC313-150-RF for NOE and use it in my rifle. I've never had any problems purchasing brass or other reloading components for this cartridge.
Mine is the base tactical 5854. I have added the Mini Scout Mount III and use Weaver Lever Lock Rings with a Weaver K4 Classic Scout Scope. The mount is modular so a use a Specter special order sling that attaches to a sling stud on the left side and a tactical light mount on the right. It feeds flawlessly with 5, 10, 20 or 30 round magazines.
This has proven to be a very accurate rifle with the Tula 154-grain PSP or my 150-grain cast bullet. I have taken a couple of whitetails with it and use it for varmint hunting, both coyote and bobcats.
The main purpose it serves is for personal protection on my ranch that I live on. The location is rather remote on a "leads to nowhere" Farm to Market. I don't get many drive ups as my place is posted and it is quite a drive to the house. A couple in a decade. I'm okay in the daylight as I always conceal carry but at night I just walk out with it in my hand and there is no doubt there will not be any monkey business on my place. It is a long way back to the cattle guard!
I have a 300 yard range at the house with steel targets at 50, 100, 200, 250 & 300 yards. Scope or receiver sights, the 7.62x39 will ring the heck out of them. I also have a Savage 10FCM Scout in the cartridge, an extremely accurate rifle and a Zastava Mini-Mauser. My hogs offer plenty of practice and the cartridge is very effective at knocking them down.