I am going to begin forming the above Herrett cases from 375 Winchester. By the way, Starline has the hard to come by 375 Winchester cases in stock right now. Get them while you can. I would like to have someone who has done it, take me through step by step how they do it. I will be using a chop saw and a Sinclair case trimmer. I have a Hornady die set. I made about thirty 30 Herrett from 30-30 brass but I formed them with the die touching the shellholder so they are probably a little short to headspace on the shoulder. I committed to using 375 Winchester brass because it is stronger brass. I also have a case annealer but it is up at my brother's place which is closed down for the winter while he sails around the Caribean for the winter. Any tips or advice about pitfalls would be appreciated.
Bob