I would be wary of using any normal mono bullet or a partition style bullet in any double particularly older ones. The A or H design of the solid jacket in the middle of the bullet might cause problems.

Monometal bullets with driving bands are an exception.

Woodleigh Hydrostatic bullets have driving bands and should still be available. They were made by someone else and assuming this was still the case should not have been affected. A lot more expensive but an option