I don’t get it (yet).
If I load one .40 Winchester case, Remington primer, 5.2gr 231 and star 180 JHP to an OAL of 1.125 and second .40 Winchester case, Remington primer, 5.2gr 231 and Star 180 JHP to an OAL of 1.185 are there any differences in the way the 2 loads fire?
tia,