I bought a 15-22 MOE. I wanted the flip up sights and the receiver mounted sling swivel. I've put about 4k rounds through mine, 500-1k per range trip. I can run about 500 rounds of bulk pack through it before it starts to ask for a little cleaning. CCI minimags or their bulk pack tactical ammo get me 750-1000 rounds before things really seem gummed up and failures pop up. Accuracy is good enough. I haven't bench tested this rifle but the shooting I do at the targets I use, the accuracy is good enough that if there is a miss, it was me. The mags are plentiful and inexpensive. They work well and haven't shown issues yet. I'm very pleased with my purchase. I have no first hand experience with the Sig, so I can't rate the two to each other. That said, if I had to buy over, I would go with the S&W again. It is the most fun rifle I own.