Apols for not replying sooner - got called into work - amazing how at getting on 61, I'm not off sick, but the youngsters (40 down to teens) often are. And guess who has to cover for them?

Yes, always use 'proper 5.6mm' in my older guns. Either Wasps or Marksman.

Grrrr - found some evidence of breech seal butchery on the Premier. Spring looked OK. The piston is reluctant to come out, will have a better look on my next day off.

Better get back to domesticity, or I'll be on the naughty step with Mrs laverdabru.

ATB

Bru