this question has come up in a number of threads, so I'll cut and paste my response from another thread.
First off though, If your sks will not consistantly group under 4 inches with soft point hunting ammo, don't even bother, get a different straighter shooting one. I have hunted a good amount with the sks and to me it is a 100 yard or less rifle. If it groups consistently under 2 inches at 100, then it'll do out to 200.
I zero my "receiver mounted" scope (a must for hunting) at 200 yards with my most accurate (under 2" groups) sks. the following comments from the other thread will explain a bit more:
What I have found as far as hunting goes, I dressed one in a montecarlo raised cheek synthetic stock, got a scope mount drilled and tapped to the receiver (bypass ALL receiver cover scope mounts for hunting purposes) and got my front open sight and bayonet mount removed. This rifle is the sh*t for hunting in the bush where shots are close, she swings and shoulders fast and the light recoil enables a quick second shot if need be. Mine has performed exceptionally on mule deer within and out to 100 yards. I am sure deer sized game can be taken out to 200 yards with this rifle but have not encountered that scenario in the field yet. For the open country, i prefer a flat shooting, bolt action magnum or a semi auto 308 (m14s ) , but in the thick not so open places where the shot has to come quick, the sks has been an excellent rifle for my needs. just think of it as a semi auto 30-30 as thier ballistics are very similar.
30-30 Federal 125gr sp at 200 yard zero, hits +3.3"@100 and -16.3"@300
velocity 2090fps@100 dropping to 1320fps@300, energy in foot pounds is 1210fp@100, 770fp@200
7.62x39 (sks) PMC 125gr sp at 200yrd zero, +3.5"@100, -14.8"@300
velocity 2046fps@100 dropping to 1583fps@300, energy 1161@100 and 893@200yrds.
1000 foot pounds of energy on impact with the animal , is in my opinion, the desired minimum to kill deer sized game, though with a well placed shot 800 foot pounds would be bare minimum.
With the semi auto action and the ballistic comparison, a straight shooting decent grouping sks , also in my opinion , beats out the 30 30 as a brush gun in all counts but one, you have heavier gr bullet selection with the 30 30.
On the topic of it being good for kids, with lots of range time possible between now and this fall's deer season, I don't see why not.....practice the shooting scenario. 3 rounds in the mag, rifle on the bench. You say go and the shooter picks up the rifle, loads the first round, removes the safety, and shoots at the 50 yard target. As proficieny increases and the child becomes comfortable, move the target out to 100 yrds. If kids can play these crazy video games and develop hand eye coordination for that..... the sks should be a walk in the park hehehe
