Home Forums Hunting & Shooting Gunsmithing "O"- rings for accuracy

I can't remember who first posted about placing an O-ring around the barrels of Stutzen (Mannicher) stocked rifles for improved and more consistent accuracy. I used it on a Ruber M77 RSI with good results. Since then I have used it on my M70 Classic FW I placed in a Winlite stock, a Ruger M77 tanger 308, and now my Ruger Hawkeye stainless ultra light 7mm-08. The Ruger UL was so/so for accuracy. The 120gr load shot better before I added the O-ring but never as good as the 139gr load does. The 139gr ammo is Hornady American Whitetail. I have a good supply pf 139gr bullets to load.

120gr @ 100


139gr @ 100