People have called us liars for years but I have experienceed a rifle that is sighted in for one person be completely off for another. One example is my dad and little brother and I and deer rifles. I could pick up my dad's rifle and center punch anything you pointed at and he could do the same thing with my rifle but neither of us could get anywhere close with my brother's rifle nor he with ours all the same model rifle with the same stock and virtually identical scopes. Don't know what caused it but I was a fact. Possibly because my dad and I were both heavier built and had bigger shoulders than my brother and it made for a different hold. I have also seen a friend who could drive nails with a bipod off a bench not hit an 8 inch circle with the same gun at the same distance laying prone with his bipod on the ground. Turned out to be the difference in material that the bipod was setting on. The recoil reacts differently on different surfaces.

if the cheek weld is different I do not think that you can expect the same point of impact.....you might have to find a way to make the same weld influence your point of aim. It would be best to shoot from the position you will be shooting for real from with the same/similar rest. When possible I prefer sitting on my butt, knees up and using a two legged shooting stick if that is not possible I would prefer to brace off of a tree...no benches where I hunt and prone is not usually practical although I have shot two deer from prone in cut crop fields. Both times I had to crawl around some brush because they came out a different place from where I expected them to come out....I keep a bipod on my rifle for that and for placing it on the ground while hunting. Good luck.

The above is jmo, I am not an expert.

Bought my grand daughter a single shot 22 cricket. Has a peep sight. She is so tiny its the only firearm she can shoot. I had to cut the stock down on her red ryder bb gun.

She was shooting with the gun twisted stead of perpendicular. I had to keep reminding her at first. This was at 20 yards. Got to where she was whacking the black pretty good. She started getting bored so we quit. I think a few more times she is going to be ready for a squirrel hunt.

I think we have our problem ironed out. Turns out her bipod allows the rifle to rotate a little. In aviation terms we'd call it the roll axis. We shot today paying attention to that possibility and were rewarded with consistency. We sighted in her .308 with hunting ammo, Nosler brand 168gr. loads. We'll probably shoot the hunting loads at 200 yds one more time, and save 20 or so rounds for our hunt, which starts about the 12th. As a side note, I'm becoming fond of her Bergara rifle, and I also like the bipod we attached. We'll be above tree line on tundra.