The SKSs are quite adequate for a truck carbine. I own two Yugo 59/66s that I bought for my sons. They are as accurate as we need, they are a good weapon to teach the boys on, and they are dependable.
The only drawback I see is that the firing pin well in the bolt MUST be kept meticulously clean. SOME SKSs had a tendency for the firing pin to stick (this is a risk one has with any free floating firing pin, but it seemed to be more prevalent with the SKS family of weapons), greatly increasing the chance of a slam fire. Attention to detail greatly reduces the risk. Since my sons were or are the primary users of these weapons, I opted to have a spring installed on the firing pin that precludes the firing pin from sticking in the "wrong" position at the wrong time.
Frankly, that's the only mod I've ever considered for either of the weapons. For me, the length of pull of the stock is short, but it fits the boys so, I'm not terribly concerned about that. For less than $200, I personally think it's a great deal, it almost puts the SKS into the realm of a "disposable" carbine.... "you can shoot it until it can't shoot no more."
Ben Murray out of Texas is the gentleman that I got the springs from.
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