My pet peeve are the guns advertised as "restored to new in England" which look good outside but have horrible bores. Who do the vendors think they're kidding?

Also, to check groups, use a Merit iris eyepiece with a suction cup on your shooting glasses, this sharpens up the open sights wonderfully.

I agree with the posters who insist on at least three minutes of angle for a four shot composite group at 100 yards. If your rifle won't deliver this kind of accuracy get rid of it. There is no reason why a 10g+ double shouldn't regulate to shoot as well as a Winchester 94 30-30.