I really enjoy this cartridge, and am happy reloading components are becoming more available. I have had my best success with RL 17, but I have tried IMR4007SSC with good success, as well as Ramshot Big Game, Varget, and 4350. Unfortunately the now discontinued Hornady 300gr RN bullets have been the most accurate combo I have tried, loaded with RL 17 it keeps groups less than an inch all day long. The Sierra 300gr Spitzer Boattail is almost as accurate with RL 17. I see another, lighter bullet mold in my future.

In retrospect, I wish I had gone with a bullet weight closer to 300 grains, those bullets protrude too far into the powder chamber, and so I am forced to use fast powders to achieve any kind of accuracy. With these 350s, I can get to 1700-1800 fps before the accuracy really starts to fall off, which makes it a really powerful 38/55. When using the slower burning powders necessary to achieve the 2200fps I was initially shooting for, the bullets show significant yaw at 100 yards, not a keyhole, but definitely not a straight on impact. I attribute this to my alloy not being hard enough, I need to find a reasonably priced supply of antimony before I do any "high" velocity testing again. Loaded the way they are now, makes for any easy shooting, fun, and inexpensive way to get more trigger time, and anything hit with these bullets is going to know it was hit. Right now I am looking at an N.O.E. 275gr flat nose gas check mold that comes with hollow point pins for a 260gr HP bullet, m velocity goal would still be 2000-2200 fps, and with a much short bullet, I think it should be easy.

N.O.E Mold