My search at Loaddata.com (a subscription service) gave no results for working up a load for 156 gr. Oryx bullets in 7x57. Norma has loading data but only for their powders--of which I have none. Have a bunch of RL-19 and 22, H4831, IMR 4064, H414
Does anyone have a starting load in these or similar powders?
Thanks in advance.