Thanks to all for the comments, it is for a handbrake cable on a lightweight car, so the end crimps are just to be pulled against as apposed to a loop.
As a temporary measure I am using 'chock block pieces' which have the two screws to clamp and deform the cable. I have done a pull test on these and it is certainly enough to lock the back wheels on a brake tester.
But, I am not too happy with them even though they work in the same manor to the screw type ferrules.
I can not use soft solder on the cable as it is nylon or similar coated to enable ease of movement.
As I said I have a ratchet crimping tool for Coaxial cables which have hexagonal dies to crimp round tube on to the coax outer braid, these are hardened but the force to do steel with would be too much I think.
I also have the typical ratchet crimping tool for spade connections and it is amazing what pull force is required to remove after use and we also have to annually test them to ensure they still meet spec.
I was at one time a frequent visitor to the forum until I got a new bug and was pleased to see the news group still going strong.
Anyone interested in what kept me busy for the past two years follow the link below.
It is still hobby engineering to me!
p.s. Steve that link to the ebay crimp tool, is similar to the type of crimp I already use, that is for coaxial crimping.