Yes, and No. I used the X ring on a Win 70 Featherweight in 30-06. We slid the thing on about an inch from the fore end and shot a few groups with factory ammo. It cut the groups in half! The in an effort to improve accuracy we slid it around to different places on the rifle. Accuracy went out the door and we could never find that sweet spot again. We shot 150-160 rnds before we threw that sucker in the trash.