I know its an old thread but if I shoot 130-140 grain pills (260 Rem) is a 8.5:1 twist too slow? reason I ask is I have the barrel but it hasnt been chambered yet...
The cross pin that holds the firing pin in the bolt body is fairly tight, so I'd assume the extractor pin would be as tight also, it's going to take a fairly strong smack with the hammer and punch (more than a tap)