Originally Posted by
Roelof
Thanx for the tip.
At this moment I am pinching the whole sleeve without a ring. Is does take some forces but when keeping it under pressure for a few minutes I do notice a difference.
Most .21 sleeves are 19.5mm and I have a clamp of 20mm. I have seen the .12 sleeves are 17mm for which I can make a ring.
IMHO, the brass ring is absolutely necessary to get a good result.
We tried to use the clamp by itself and it never worked.
The brass ring gives you the shape that you want, that why it is conical, just as the sleeve.