Here's my $.02 I no longer have a Mini30, but have had extensive experience with 7.62x39, 5.45x39 and 5.56x45 Wolf, other commercial Combloc ammo and Combloc surplus ammo. The only ammo that I have found to have corrosive salts (primers) in is the military surplus. It is decent ammo and the reason Combloc STILL use corrosove primers, is because, over many yearsof storage, the corrososive priming compound is more stable, thus more reliable. Some of it is very accurate, some is not, but if you use any corrosive primed ammo in your gun, you should clean it well afterwards. Now, as far as the commercial stuff goes (Wolf, Barnaul, Golden Bear, Golden Tiger, etc.), It is not corrosive and doesn't require as much cleaning after use. But, some of it does have propellents that burn dirtier than others and some, depending on the case coatings and case dimensions, does not feed well in some guns. Brass acts a bit different than steel when fed, fired, extracted and ejected. I have not found any of the commercial stuff to be quite as accurate as the military ammo, and of course, it is not match grade.
