Several years ago my wife bought me an Omega for Christmas. I had sighted in a buddy's Omega and was so impressed, I thought I'd ask for one for Christmas...my bride is very good to me.
Anyway, my buddy's gun drives home 1-1.5" groups at 100 yards....my new Omega, all over the place. As great as 9" at 100 yards. After a bunch of attempts to improve the beast, I gave up and used my reliable old Staghorn...it does not have a scope, but with peeps, it's a 1-2" grouper at 100 yards!
So, I got some advice from several Omega shooters on how I might improve my gun's groups. 1) shim the front locking bolt (moving the barrel up a tad at the nose. 2) sand down the sides of the stock (where it actually touched the barrel north of the front locking bolt.
I did these and low and behold, I do not have to sell the Omega. In fact, I'm taking it out today. I just need to keep the gun rested at or behind the front locking bolt.
Here's a pic of the improved groups. I can live with this as I really did not work very hard for a tighter group. I can get better on a calm day and more solid rest...but heck, hunting is not "perfect conditions".
Bob