Gunsmithing Brownell Barrel Vise Bushing for AIAWSM 300WM?

[Tribe]

Fellas,

Need a barrel vise... figuring on ordering the Brownell's... can anyone recommend the proper bushing for an AIAWSM 300wm?

Also, I have read both 100ftlbs & 120ftlbs for the AWSM.... which is correct?

Much appreciated.