Wm.Traynor wrote:I am close to resizing my cases with a bump die and am going to test the resistance of the bolt to closing with the F P and extractor removed.
Trouble is, I don't know how to remove it. This site and the web has yielded nothing. Not a mention of the claw extractor at all. Plenty about the push feed jobbie but I reckon I could manage that on my own.
Can someone tell me how to get it off as there seems to be quite a bit of resistance to turning, just from the Extractor alone. I am trying to get things so that the bolt handle flops down, on a bumped case.
First, on removing the extractor.
I have never owned a M70 Winchester but I do know it has a T slot extractor. They work on the basis of a ball under spring pressure against a ballseat in the base of the extractor. It will have a through hole in the extractor and the ball can be pushed down and the extractor can be manipulated out of it's position by using a suitably sized probe to push down on the ball.
Be careful because the ball will be under considerable spring pressure and can be easily lost.
The ejector will be held in with a pin.
Second, on the wisdom of what you want to do.
Simple answer is don't.
It is far too easy to end up with a dangerous amount of headspace. The only way to achieve zero system headspace is with the use of an accurate and reliable headspace gauge to compare with a fired round loaded to full pressure.
Lastly, where does all this shoulder bump malarkey come from? Is it just an imaginative rebranding of full length sizing or have I been missing out on something for the last 50 years?