Hes just being a smart arse, no worries, no legit questions are dumb questions. It dependes on the range, if it can handle .30 cal rifle your good to go. Beware-Most surplus is mild steel core, you will have to ask if thats alright for the ranges backstop or not.
Yes most all the sks's you'll find are non-restricted, they are sporting a 20" barrel. Most of the russian ones and chinese ones are chrome lines, the yugo's are not. Russian and yugo are nicest for fit/finish but military grade chinese are still nice as well.
They sell like hot cakes in every gun shop and are very popular. I hunt deer with mine and have bagged several.
They are common at the range and are cheap to shoot. There is a good selection of military surplus non-corrosive ammo available now, but there is also alot of cheap "good" but "corrosive" com bloc ammo in circulation as well.
If you are unsure, clean your gun really well with boiling water and then normal cleaning and oiling procedures to remove residual salts left from the primers, otherwise your gun will rust up in the bore and gas system.
Buy one, enjoy it and shoot away!. Every Gun owning Canadian should have atleast one sks rifle.
They are rugged, reliable, simple and easy to maintain whats not to love?.