I'm sure you do. If the targets are man-size, this rifle is capable of that in its stock form. Many have done similar, and I get totally acceptable accuracy with my six different SKS's made in three different countries, many as much as 25 years apart from each other by radically different people.
I would not be so confident in it's ability to do this after smacking on a red-dot and a ton of tacticool furniture, though. I also am not convinced that all this tacticool is actually a bonus. This rifle comes to us from the factory as a reasonably low profile rifle that is more or less indestructible. It can be fired from prone because it doesn't have a big-ass plastic banana magazine sticking out the bottom, it can be relied on to work out of the box, and it can be relied on give you minute of capitalist groups out to 400 meters or so. I do not see how throwing on a ton of plastic furniture, magazines and rails make for an upgrade to a little carbine that did right by every troop/guerrilla/child soldier/etc who was issued it it it's default state. Would you trust Tapco parts to hold up to the abuse of the environment the SKS was made to operate in? I wouldn't.
If you said to me: "Andurp, Nazis have taken over the government! Grab your surplus chest rig and your cheap, beater, bone stock Chinese SKS with 10K+ rounds through it and go into the woods to join the resistance!" I would feel like I had a perfectly reliable and adequate rifle to depend on, after removing the pin from my mag. I dunno how I would feel if you replaced my junky looking Type 56 with a tapco special with a red-dot on it.
If you ask me, the only two upgrades that actually make the SKS "better" as opposed to "different from the original configs and more scary looking" are tech-sights for a better sight radius and a superior sight picture, and a buttpad extension for better length of pull. Maybe a tasteful synthetic stock in a similar profile to the wood one after it gets beat to crap, which is not at all easy to do. But I guess the tapco stuff is okay for the range. I guess.
But, OP's gun is not my gun. I wouldn't be a very good Libertarian if I attempted to tell him what do with his property. I'll just give my opinion, which is worth about exactly what you all paid for it. Some guys can tacticool their SKS's, and others like me can keep it stock. So long as we're having fun and being safe while shooting them, s'all good.

I just don't think I'd be willing to take a tapco'd SKS to war (which is never going to happen anyway) or think it was worth keeping as in investor piece which will at the very least hold it's value, but very likely go up in value as SKS's get harder to find in the future.