I would have to list the 7.62x39mm M43 as one of the most
useful rounds ever made.
The reports of its inaccuracy are greatly exagerrated, (It is no Sniper weapon, granted,) but inside 300m, it works just fine. Plenty of SKS and AK owners have made clean kills on deer with that round, (And no doubt it functions just fine in the CZ572 as well.)
It is probably the most inexpensive round that is still viable for self defense. Good, relatively expensive, boxer primed ammo for it is still cheaper than .30-30, and more user-friendly weapons chamber it, as well.
The SKS and AK, the two main weapons that chamber it, (Let's not sully our comparo with talk of sell-out Ruger's Mini/Ranch,) have unquestionable reliability.
It is probably the best "
kurz post-.30" round availible with the possible exception of the .308, (There is also 6.8SPC and 6.5 Grendel, but they are not "established" like the .308 and M43.)
But, doesn't the 308 do a better job than the 7.62x39?
Well not for all. Some would point out that the .308 is a "battle rifle" round and the M43 is a "carbine" or Sturmgewehr round. That line is apparently drawn somewhere between a 43mm case length and a 51mm case length.
But the .308 is not as approachable in all forms for all people. In the rest of the country, CETMEs, FALs, Saiga .308s, Valmets, AR10s, etc are legal to own. For a subject of the PRK such as myself, autoloading .308 carbine choices are scant indeed. Other than a rebarreled Garand, the cost prohibitive M1A from Springfield is about my only choice. And a behemoth it is. No pistol grip, big fat expensive lo-cap magazines, and a Mall Ninja after thought version, (SOCOM16) that is slightly less unweildy. All for $1500+? No thanks, comrade. This serf will stick to the SU-16CA and M59 Yugo SKS, which together don't equal half the cost of the M1A.
Granted, the .223 is a better Varmint round. Granted the .308 is a better match round. But for the yeoman's work, I take the 7.62x39mm.