ORIGINAL: oldsmellhound

Hi everyone,

I wondered if any of you could help me out. I don't own a chronograph, and I'm interested in knowing the velocity I'm getting - I use the ballistics calculator on the Hornady website to figure out trajectory, but it doesn't work too good if you don't know your muzzle velocity. My load is:

.45 cal inline (24" barrel)
200 grain .40 cal SST
100 grains loose 777 FFFG

I've found charts for 100 grains 777 pellets but I know that loose FFFG is going to produce higher velocities than 777 in pellet form. If anyone could point me in the right direction, I'd appreciate it.

Thanks