I have fire formed a lot of brass and did it the same way other than he is just wasting a lot of time and ammo my shooting it without a scope on the rifle.
If you have a new rifle as in the video you should have your scope mounted and bore sighted and then use the rounds that you are fire forming the brass for to sight in the scope. Then when you go to reload the formed cases and sight in your rifle it will already be sighted in and ready for the fine tuning.
As for cartridges that I have done it to here is a list of them.
.25-06 from .30-06 very simple really just a neck sizing job
.30 Herrett from 30-30 brass, this gets complicated. Forming the brass in a die, trimming it, and then fire forming it.
.357 Herrett from 30-30 brass. The same as with .30 Herrett.
7-30 Waters from 30-30 brass. Run it through a sizing die and then fire forming it in your rifle or pistol.
357 Brain and Davis from .44 mag. You go through a lot of brass with this one.
.44 Auto Mag from .308 Win. Cut the brass down and start shooting it.
.357 Auto Mag from .308 Win Cut the brass down and make .44 Auto Mag brass and then run it through the .357 Auto Mag die.
.340 Weatherby from 300 H&H. It is just easier to buy .340 Weatherby brass.