From my experience loading 45 ACP I've noted that the plated bullets tend to run slower than hard cast lead.

230 gr. LRN / 1.275”OAL
WLP Primers / Win Brass
5.6 gr. W231
Ave: 882 fps ES:11 SD:5

200 gr. H&G #68 LSWC / 1.255”OAL
WLP Primers / Win Brass
5.8 gr. W231
Ave: 950 fps ES:18 SD:8

200 gr. X-Treme P-RN / 1.255” OAL
WLP Primers / Win Brass
5.8 gr. W231
Ave: 860 fps ES:48 SD:19

200 gr. X-Treme P-RN / 1.255” OAL
WLP Primers / Win Brass
6.4 gr. W231
Ave: 930 fps ES:60 SD:26

__________________
Dave
SWCA #2465