Not sure you’re aware but Woodleigh make their 458 Hydros in 400gr and 325gr weights for the 45/70. The 400gr version is probably a little too long in a 45/70 case, hence the 325gr version.
The 400gr version, when loaded in a 458WM case and crimped in to the 3rd groove from the bottom, provides over one caliber length inside the case and still fits in a 30/06 length mag.
