I've certainly been cautious with the few I've done but at the time wanted to know if I had 'options' if the Jamison brass was not forthcoming. Even if I could source it, I then had to get it back down here. Between the assistance of good friends and of course my pilgrimage to the Q the last few years I managed to get around that hurdle... but then Captech ceased production ! Bummer

RMC got me up and running thankfully and I couldnt fault their cases. A little down on capacity but not dramatically and the dimensions could be 'made to order'. Hence I was able to get brass at 2.270 -2.275 and trim back as required. Even managed to get some case necks at .014" and they work well with the Brooks 'Sharps' p.p. bullet mould I have. Hopefully I've enough JBA brass to keep me out of trouble for the moment but should I need to form any more I will take your idea of the tape into consideration to even out the expansion over the full radius of the case. Looking forward to hearing and seeing the results when you get your rifle up and running.
rgds... J.B.