Many years ago H.E. Harrison wrote article on cast bullet bullets and loading. These were in the NRA issues 1957,58,63,59. seven article altogether. He lists the best bullets and loading for all the different riflings from micro to two groove. I settled on Lyman 311291, 311334 and 311316. His articles were for the 30-06. Because I shot with the club here on Grays Harbor during the days of NBFRP I used the 2 groove Springfield barrel with 20 grains of 4198 for the 200 and 300 yard course. I really like the two groove and Lymans 311334. Best group at 200 yards was 2.00" however most groups off the bench were usually more like 3". Light loads as you guys state are the best for general accuracy. For example 12-13 grains of 2400, 4759, and Unique. Shot a few deer with 311334 and 311291 with the same 20 grains of 4198.