Thanks great video.

My CZ 457 MTR 20" just loves SK ammo. But believe it or not I live were it is manufactured, and it's out of stock.

Have you noticed on watching your videos that this CZ about 75% or more of the shots the bolt is actually lifting upon firing? Some it's not much but there is some it lifts quite a bit. I wonder how true the lugs are to the receiver and it that might be something to look into. Good shooting as always. I can't say I've much luck with SK LR in anything I have. I get as good or better results with Rifle and sometimes even Plus does better.

That long range don't shoot very well in my cz457s and the one 457 shoots just about anything but it doesn't like that sk long range. I think that just might be the ammo. Beagleman