The trouble with the claw extractor is there is the Mauser and Brno claw then the rest. All of the clones including the BAS and Win Model 70 lack the dovetail that locks the extractor to the bolt body. When "in extremis" extraction is required they will pull over the rim - don't ask how I learnt this, very embarrassing and spoils your entire day. Needless to say I let my pre64 and BSA Hunter go, dammed shame.