Here are a few of my data points I have for N320 and 200gr coated bullets, gun is most likely a 5" SVI...I've got data for other bullets if you need it PM me, it's easier to email.
Bullet
200 gr bayou
4.4 grains
1.22 Oal
FPS
888,909,915,910
200 gr bayou
4.3 grains
1.22 oal
FPS
896,891,883,867,908,894