The barnes 210s neck tention in my once fired brass is suprizingly tight. I dont add a crimp to my 375 because i dont load to max velocities, so just a plain neck resize is all i do. I have never had this happen with any other barnes bullets reguardless of caliber. So my question is... how much tention is to much? Has anyone else had this happen? And would you shoot one with 75 grs of rl-15, and a fed 215 mag primer @ 2940 fps, which is the starting load in the barnes manual?