I remember reading about my 94 when I got it (.30-.30) about the pre 64 guns and then the unwanted ones 65-81 vintage. Then quality improved starting in 82 when the gun was redesigned. I was happy mine was a 87 model with only 1/2 a box of ammo run thru it.
Prices on new ones up here are $1700 with them being $1200-$1300 in the US