Today I tried the 170gr. NRA boolits in my 30-30 with good success. They start at .301", I patched them with 15# green bar paper, lubed with Rooster Jacket, and sized to .309" in a Lee die. Loaded over 4.0gr. IMR4227 + all the WC860 I could fit in the case, they shot better than I can see and were close to normal factory ballistics. Seated to let the patches engrave the rifling but still close the lever of the Marlin 336 without difficulty. I haven't had stellar results with this boolit in the 30-06 yet, but it sure seems to be at home in the 30-30!
-Nobade