Sorry - can't help with that question, however, would not the 300gr. Hornady RN be a good candidate for that ctg?
Thin jacket up front and pure lead core. Might not feed, though.
Sized down to .367", I used them in a model 96 Swede actioned sporter - 45.0gr. H4895 gave me 2,175fps and ZERO pressure signs. Case Web expansion of the NEW brass was less than .0005"(1/2 thousandth) from being FL sized. IIRC, it was .0003" in one or two areas, not all the way around.

2,175fps is the 1912 speed for 286gr. bullets from the 9.3x62. Just saying.