I tried to load up some 38-55 brass and also converted 30-30 brass for a 375win and noticed that the brass walls were a bit thinner than factory Winchester 375win brass. When I loaded up a jacket bullet into the full length sized converted (mixed headstamps) brass there was very little neck tension and bullet setback was a concern of mine. This lead me to get the lee 379-250 mold, this way I would get some neck tension.
If the case walls are thinner than the 375win brass would there be any safety with pressures if loaded within the cast 375win data for the 250grain. I will be ordering some of the captech 375 brass but wanted to ask if the 30-30,38-55 is safe for future use.
THanks again.