Purchased a new 1873 Stoeger-Uberti rifle in 45 Colt only to find I get 6 to 8 inch groups at 45 yards. Firearm was returned to Stoeger for warranty repair, they fired 3 shots thru it, enclosed their target and suggested I had defective ammo. Their group at 45 yards was 3 inches. Not acceptable. Anyone else having accuracy problems or problems getting Stoeger to honor their warranty?