Savage 110fps .338 need advice can't sight in

[alotquicka]

I have a savage 110 in 338 Lapua bipod precision stock fluted barrel with break I have a Sightron S III 10-50x60. I can get a group of three rounds when I go to adjust the crosshairs and shoot once more it jumps around on the paper I had the rifle in a lead sled strap down only thing I can think of is my rings on the scope to rifle are not adequate enough everything was tight and tort perfectly is it possible the rings were not good enough

I'm frustrated. Please advise
Thank you all

 

[Duane Waterson]

Check rail screws... I had the lrh. And they came loose and I locktighted them!

 

[alotquicka]

I will go thru everything one more time. What is the preferred torque spec for rings.
I'm novice

 

[MMERSS]

Dump the lead sled. There is a time and place for the sled. Load development for precision is not one of them.

 

[alotquicka]

What do you suggest then

 

[MMERSS]

Shoot the rifle off the shoulder as what one would shoot in the field. Shooting from the bench is more relaxing until the load is near final development then shoot prone. Take time between shots if needed. I've shot up to 50 300gr in one shooting session but over several hours.

 

[FEENIX]

Did your current load/set-up ever grouped well?

Once you've checked as recommended, have someone else shoot it.