stephensackro
New member
Wanted to find a really clean burning powder for 9mm and bought a pound of VV N320. Everyone says that it is a very clean burning and in my testing I found this to be true. Loaded up 100 rounds, some at 3.5 gr and some at 3.8 gr using 124 gr FMJ RN bullets. Min and max for these is 3.4 gr starting to 4.0 gr max. Went to the range (50 yards) yesterday with my KelTec 2000 to test these rounds. My previous load for these 9mm rounds were Win 231 @ 4.2 gr which was very accurate but dirty. Started shooting the 3.4 gr of VV N320 and found they were all of the place and shooting about 5 or 6 inches low. Next I tried the 3.8 gr VV N320 and they shot about where my old Win 231 shot and were accurate. Seemed like a big difference for just .3 gr more powder. Was thinking that maybe ? since the N320 is a fast burning powder and my barrel length on this carbine is 16 inches, that the fast burning powder at 3.4 gr didn't have enough "push" for the 16 inch barrel. When I switched to the 3.8 gr, more pressure and velocity really helped accuracy? Don't know if my thinking is right or could it be something else. I will be loading at 3.8 gr and might even try a slower VV powder like N330 for this rifle. Your thoughts.