I bought this deluxe carbine in the early 1990s. It was the most inaccurate rifle i have owned. I tried a
variety of ammo and the results were the same 3" at 50 yards on a good day. It spent the next decade at the back of the gun safe.
I replaced the barrel with a green mountain fluted sporter barrel but I never liked the fluting and missed the sights.
The Ruger Barrel has been sitting on my tool box in the garage now for several years. I took the barrel and
machined a slug that would fit in the chamber so I could measure where the rifling started.
According to Sammi specs the bullet was .060" away from the rifling when chambered. I chucked the barrel
in my lathe and I removed .090" from the breach face and the face the contacts the receiver.
The bullets now will engage the rifling by .030" when chambered.
I re-cut the extractor groove in the barrel with a slitting saw and touched it up with a file.
I removed the Green Mountain Barrel and reinstalled the factory barrel and made a trip to the range.
I can't believe the difference. The factory barrel now consistently shoots under an inch at 50 yards with bulk ammo.
I mounted a Hawke IR 3x9x40 scope mounted on it. The scope has a reticle with points on it for different yardages on it up to 200 yards.
Terry
This was shot rapid fire off the bench at 100 yards with Federal Automatch. A twenty round 2 1/2" group.