My hunting load in the .69 starts at 2,516fpe and at 100, it's down to 1,098fpe.
A .54 ball starting out t 1,700fps (300+fps faster than the 80gr. shooters) starts at 1,289fpe and at 100yds. is down to 494fpe.
A .45 ball starting out at 1,800fps (70gr. 3F charge) starts with 812fpe and at 100yds., is down to 263fpe.
Of course, we should all know that FPE is a VERY poor representation of anything to do with killing power.