I need to run a 'ladder test' on this load?

6.5x47 Lapua by Sharps45 2 7/8, on Flickr

6.5x47 Lapua #2 by Sharps45 2 7/8, on Flickr
Fired these 10 rds yesterday from 800 yds. from my 6.5x47 Lapua using 38.5 grs. Varget and BR-4 primers. Had a fishtail wind from 6 o/clock running around 6-8 mph so just shot this 'straight-away' meaning just using a DWZ aka Dead Wind Zero to see how the group would cluster. First round hit at the 3 o/clock position left of the bolt head and I fired the other 9 into the cluster seen. All 10 rounds could be covered with the top to the spray can. White plate is 20" diameter.

6.5x47 Lapua by Sharps45 2 7/8, on Flickr

6.5x47 Lapua #2 by Sharps45 2 7/8, on Flickr
Fired these 10 rds yesterday from 800 yds. from my 6.5x47 Lapua using 38.5 grs. Varget and BR-4 primers. Had a fishtail wind from 6 o/clock running around 6-8 mph so just shot this 'straight-away' meaning just using a DWZ aka Dead Wind Zero to see how the group would cluster. First round hit at the 3 o/clock position left of the bolt head and I fired the other 9 into the cluster seen. All 10 rounds could be covered with the top to the spray can. White plate is 20" diameter.