I have an Axis SR, in .223 (SR, not SS) I've only taken it out twice, it's great to shoot, and a much cheaper alternative to other rifles, and going with .223 is great on the wallet as well. .223 models also fit 5 rounds in the magazine instead of 4. Action is smooth, although the bolt goes up higher than my dad's Remington 700 bolt. Gotta watch your fingers Also, the scope mount screws are pretty far apart, the scope I put on it wouldn't fit with the two piece mount I got, so I had to buy a long full length picatinny rail... and then mount the rings. The SR model has a threaded muzzle. I have a Miculek muzzle break on it.