AR-10 Saint Victor Gas Block Adjustment

[Echo5mike]

The rifle came with four gas block screws, which invites the question, which to use? At present, the only plan for the rifle will be 150 or 165 grain bullets running 2600 or 2700 fps. No subsonic or suppressor. Not wanting to over-gas the rifle, what is the factory-installed screw set to handle? Is anyone tuning the rifle with the provided adjustable screw or the three, fixed, provided screws? Thanks

 

[KillerFord1977]

Was there a screw already installed ?
Mine has run 100% perfect from the box with no gas block adjustment.
Normal ammo

 

[KillerFord1977]

The rifle came with four gas block screws, which invites the question, which to use? At present, the only plan for the rifle will be 150 or 165 grain bullets running 2600 or 2700 fps. No subsonic or suppressor. Not wanting to over-gas the rifle, what is the factory-installed screw set to handle? Is anyone tuning the rifle with the provided adjustable screw or the three, fixed, provided screws? Thanks

There is a dedicated page in the owners manual for the set screws and gas block.
May be beneficial to read

 

[Bear007]

See page 35 in your manual. Use Mode 1, the solid set screw and it should work fine with the ammo you listed.

 

[Echo5mike]

Was there a screw already installed ?
Mine has run 100% perfect from the box with no gas block adjustment.
Normal ammo

Yes. I wish Springfield Armory was a little more informative on the topic. I have read what the manual says. I will stick with the factory-installed screw until I see a reason to do otherwise.

 

[Echo5mike]

A 5/8/2019 article on Outdoorhub.com does a better explanation of system than the manual does.