What counts is the cartridge, not the platform. I don't want .223s or 7.62x39s in camp as primary mule deer cartridges in this wide-open desert country where shots may be very long and the deer may be running.
A good hunter wouldn't take a long, running shot with those cartridges.
Hell, I won't even do it with my .270 Win.
Hunting with .223 Rem is an incindiary topic, no matter where it comes up. I don't want to get into the "Should people hunt with a .22?" arguement.
7.62x39, however....
.30-30 Winchester usually produces about 2,300 fps with most 130 grain SPs.
.30-30 Winchester usually produces about 2,200 fps with most 150 grain SPs.
7.62x39 usually produces about 2,200 fps with most 123-125 grain SPs.**
7.62x39 usually produces about 2,100 fps with most 150 grain SPs.
7.62x39 comes up only 100 fps short of the .30-30 with the two most common bullet weights for hunting. I'm sure 90% of the people on this board, from 'out west', find the .30-30 perfectly adequate for western game. Yet, quite a few of those same persons find the 7.62x39 to be inadequate. I don't understand the disparity.
(**Some of the older, steel-core ammo that was de-mil'd from FMJs to "Soft Points" will produce 2,400-2,500 fps. Explosive expansion on impact, and fantastic penetration from the steel core....)
The R-25 mentioned in this topic is even better, being chambered in .308; and conducive to scope mounting. Shoot what you want, with what you choose.