Please tell me if Im right or wrong.
1st adjust it for scope on target.
I do but pressure on the wood on the forearm to hold it down. I don't touch or grasp the barrel.
The butt is tight against my shoulder with my right eye to see through the whole scope and target.
I keep the unite up high as I can "like if I was shooting standing" but my butt is really sitting. Trying to keep a strong posture.
Pull the trigger.
I mostly use it to get a bullet on paper and try to see how my reloaded ammo groups. But I get to wonder if its still jumping too much.
here's my method of using a lead sled (i'm right handed):
put 50#'s of lead in the sled, and get the rifle set up so the scope is looking at the center of the target while i am not touching the gun or sled. then get the sled against my shoulder, and re-check the scope's alignment, while shifting the tail of the sled left or right to get the desired effect. now, grip the wrist of the stock w/ my right hand, assuming a shooting position. again, check the scope. use my left hand to shift the tail of the sled left or right, or up and down via the rear screw. use as little pressure as possible w/ my cheek on the gun to get the firing sequence ready. keep my left hand well away from the gun, little cheek pressure, grip wrist, and begin trigger squeeze.
after the gun goes off, do everything all over again.
if you want to see how much deflection is possible, use more or less pressure w/ your cheek, or use forearm pressure w/ your left hand on the rifle's forearm. you can easily turn a 1 moa rifle into a 4 moa rifle using lead sled and body pressure. you can also see it visually by merely setting your gun up to shoot at 200 or more yards - even a 6x scope will show all manner of movement. you have to be very, very consistent in how you use the sled to get reliable results. it is a slow, awkward but potentially very precise method of shooting a rifle. and yes, when i shoot, especially bigger guns, the rifle jumps way out of the sled and slams back down against the front rest - make sure your front rest is well padded.
the lead sled is a tool, much like a chrony. it has its place and can be useful. it can also be frustrating and slow... just like a chrony.
because of all that, i much prefer to do sighting and practice work w/ no sled, using the sled only for load development. makes it easy to completely develop a load for a 338 win mag or 300 win mag in one range session w/ nothing more than a t-shirt for recoil...