Not really. The best my AKs do, and that's a milled Bulgarian SLR-95 w/my handloads, is 2MOA. A flat-based bullet of good construction will shoot just as well in that particular delivery system.
There may be a few fps difference in velocity at an AK's useful range with the cleaner bullet, but it really isn't worth the extra cost, IMHO - and I handload ALL of my ammo, including the 7.62x39 that feeds three AK and two SKS variants.
But there are boat-tail .311" bullets out there that will work in the 7.62x39 cartridge. The manufacturers know the 7.62x39 has some great accuracy potential when chambered in other platforms like the Thompson/Contender, Interarms Mini-Mauser, the Ruger Model 77, the CZ-527, etc.
The 7.62x39 is the parent cartridge of the .220 Russian, which beget the current 6mm PPC family of benchrest cartridges. I've shot a scoped Thompson/Contender chambered for the 7.62x39, and it was used to knock over steel silhouettes at 100 yards - when they had been turned edgewise to the shooter from another's previous attempt to knock them over.