I just got done building my 25-45 Sharps in an AR platform. I have the reloading dies and 90 grain Sierra Blitzking slugs in transit. Does anyone have any powder suggestions? Will I be out of line starting with 28 grains of H335?
Ran a chart in QL and they showed 25gn for max charge w/the 90gn sierra. That's everything @ default specs. 2.26" COAL and 31gn h2o fired case capacity. 28gn of 335 was something like 87k PSI peak pressure, way hot.
should be able to use 25TCU data as a starting point as well as its essentially the same thing, a 223 case necked to .257. Both have the same 31gn h2o case capacity.