You won't be disappointed in the CVA Mark. I've owned three of them and all three were great guns. My current set-up is a tack driver when using 100 grain of Triple 7 pellets, 270 grain Powerbelt Platinum bullets, and Remington Kleen Bore primers. And yes, I think primers can make a difference in the accuracy equation. With the new Accura having the quick release breech, you get a great gun with some great features without paying an inflated MRSP to cover the pimpage. (i.e. Bone Collector BS) I've put my faith in CVA three times and I'm about to do it a fourth and as you can see, I put some thought in to where my money goes. Maybe TOO much!