I just got some precision delta 124gr JHPs to try out but only have WSF on hand. I have been reloading 124gr montana gold FMJs with 4.8gr WSF at 1.140" with great success and am at the low end of the recommended loads per my manuals. What I don't have is any JHP data for 124, plenty for 147 and 115 and other powders for 124 but not WSF. Based on the length of the bullets with my calipers the OAL of the JHPs is 0.0115" shorter than the FMJs. I should be safe starting at the same load data from the JHP correct? Basically I wold be loading with 0.0115" more case volume for the same charge weight? Just want a quick second check before loading a few up. Wanna kill these ads? We can help!