I'm no wiz at math so I did create a MS Office Excell spreadsheat that counts all the fingers and toes and you get the particular numbers from the velocity of your shot strings.
I hope that gets you started for the next round over the cronograph.

Thanks, don't go far away, may need your math help again .

I recently posted on another forum that I suspect that my rcbs 505 scale sticks or drags and is causing strange readings on the chronograph. Dont know why the scale does this. I am constantly tapping the powder holder to make sure it is working correctly.

I don't think the scale is the problem, it is older than dirt but seems to work fine. Plus I when I am done I check all the cases to make sure that they all look like they have the same amount of powder in them. Not the most exacting way to do things but you can sort of tell if one is a little short.

yooperchuck wrote:

I recently posted on another forum that I suspect that my rcbs 505 scale sticks or drags and is causing strange readings on the chronograph. Dont know why the scale does this. I am constantly tapping the powder holder to make sure it is working correctly.

I had the same problems with the same scale. I went to a digital scale, much more trustworthy. You might want to consider doing so as well.
Keep it coming...

My Redding scales sometimes seem to stick as well, but I just tap the bench beside them and if they move they are ok.

I am scanning Ebay now for a set of digital scales. Plenty of them there, but they seem small and are unknown brands.

To buy a big brand name scale over here costs squillions.

Cheers, Vince