Gun is MP40C. Having put through over 300 rounds of Gold dot 165g, I can say they consistantly shoot low (4") compared to 180g FMJ at 10 yds. 180 shoots POA with everything I've tried. Oddly enough, Extreme Shock 100g AFR's shoot POA or slightly high. I wouldn't think bullet shape would matter at these distances but who knows. One thing I have really noticed more than anything else about shooting is that target height makes a huge difference. If the the target is lower than my arm being level, I tend to shoot low due to sight picture and vice versa. Not enough to affect combat hits, but bullseye for sure. For example, last week someone left 2 shoot-n-c targets up with only two holes in it, so I figured I'd put them to good use. One was pasted 12, one at 6 to my natural point of aim. I shot high on the 12 and low on the 6.
During cease fire, I pasted my own and bingo, i was shooting dead on....wasn't the bullet weight that was affecting shots, but my POA relative to my eyes/arm.
