A Load for 223 Rem VV N550

[fx77]

I am not sure why, but I have 6# of VV N 550. It has a little more energy/unit weight in joules than N 150,about 3900 compared to 3700). They burn similarly, but the 550 gives more sppe to the bullet. Since I am stuck with these three jars of powder...anyone had any experience with N 550 with 223 Rem or am I just wasting my time?

 

[Klong]

I do not have a load for VV550 as it seem a little slow for most 223 Rem. I shoot a lot of VV540 with the heavier bullets and achieve good accuracy and velocity. I do not see why you could not use VV550, but it does not appear to be the best powder for this application. I will check with some of my shooting buddies to see if any have tried it. What will you be shooting it in?

 

[memilanuk]

About the only people I've seen using 550 in a .223 are using it behind 80 and 90gr VLDs in 26"+ barrels... the longer 'push' helps eak out every last fps possible.

 

[fx77]

Shooting with an AR 15 heavy barrel assembled by Compass Lake Engineering Frank White
I will use 68 to 80 gr bullets.

 

[ronemus]

I use N-550 exclusively in my loads for NRA Highpower and Long Range. I use molyed Hornady 75 gr bullets, the BTHP 0.030" off the lands at 100-300 yards and the A-Max 0.020" off at 500-1000. In Krieger, Broughton and Border barrels with Krieger, CLE and Holloger 90 chambers, 26 gr N-550,adjusted upward as the throat erodes) in WW or LC brass and a WSR primer produce ~2930 fps at less than maximum pressure. This isn't a hot load and worked with multiple lots of all components, but should be worked up. I can produce the same velocity with 25 gr RL-15, but at higher pressure with faster barrel wear. With the long throat of the Holliger chamber, these loads are only slightly compressed,I use a funnel with a 6" drop tube).