Yes, I reversed the numbers above and now I corrected them. And those getting slightly different number used different heights above sea level and sight height above bore. Mines a measured 1.8" default is 1.5". That alone can make a slight difference.
Also I was not trying to say what the minimum expansion is for the 123 grain SST or what it should be, just that 2000 fps impact velocity was just an illustration of what an extra 50 FPS buys you which is about 25 yards. The further out you go, the less it buys you as velocity is a wasting asset.
Also I was not trying to say what the minimum expansion is for the 123 grain SST or what it should be, just that 2000 fps impact velocity was just an illustration of what an extra 50 FPS buys you which is about 25 yards. The further out you go, the less it buys you as velocity is a wasting asset.