Finally got out the chrono and checked the two listed loads for the 2R Lovell
50gn CBE cast 11gn Accurate LT-30 @ 2152 fps
50gn Sierra spt  17.3gn H-335  @ 2650 fps
My 2000 fps estimate  was low for the cast bullet.
My 3000 fps estimate was high for the jacketed bullet
Both shoot very close to the same POI at 100 yards with about a 2" to 3" vertical spread. 
Both are moderate pressure loads that will be easy on brass.