good morning;
Was given a very large number of 300h&h cases to expand to 375 weatherby. Tried fireforming with 5.2 grains of bullyseye powder which did not work. Reason maybe not enough powder.
Decided to try to expand 300h&h cases in steps. Ordered a .338 & 358 tapered expanders from RCBS. The .416 was not in stock. RCBS said when the .416 become available they will send one to me.
With a little effort, not a problem to expand 300h&h case to .338 then to .358. Have lots of .358 bullets, all kinds cast and jacked. 100 grain jacked to 200gas checked cast.
New game plan, seat a .358 bullet in the case then fireform with that bullet.
Request input on bullet weight, style and a suggested power. Have red dot, green dot & bullseye powders.
Thanks for any input